/* ========================
   Advanced CSS Variables & Color System
   ======================== */
:root {
    /* Primary Brown Palette */
    --brown-50: #fdf8f6;
    --brown-100: #f2e8e5;
    --brown-200: #eaddd7;
    --brown-300: #e0cfc5;
    --brown-400: #d2bab0;
    --brown-500: #bfa894;
    --brown-600: #a18072;
    --brown-700: #8B4513;
    --brown-800: #723c0f;
    --brown-900: #5d320c;
    --brown-950: #3c1f07;

    /* Primary Green Palette */
    --green-50: #f0fdf4;
    --green-100: #dcfce7;
    --green-200: #bbf7d0;
    --green-300: #86efac;
    --green-400: #4ade80;
    --green-500: #228B22;
    --green-600: #16a34a;
    --green-700: #15803d;
    --green-800: #166534;
    --green-900: #14532d;
    --green-950: #052e16;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--brown-700) 0%, var(--green-600) 100%);
    --gradient-secondary: linear-gradient(135deg, var(--brown-500) 0%, var(--green-500) 100%);
    --gradient-light: linear-gradient(135deg, var(--brown-200) 0%, var(--green-200) 100%);
    --gradient-overlay: linear-gradient(135deg, rgba(139, 69, 19, 0.9) 0%, rgba(34, 139, 34, 0.9) 100%);

    /* Neutral Colors */
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --gray-950: #030712;

    /* Typography */
    --font-primary: 'Heebo', 'Open Sans', system-ui, -apple-system, sans-serif;
    --font-fallback: 'Open Sans', system-ui, -apple-system, sans-serif;
    --font-weight-light: 300;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-black: 900;

    /* Font Sizes - Responsive Scale */
    --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
    --text-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);
    --text-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
    --text-lg: clamp(1.125rem, 1rem + 0.625vw, 1.25rem);
    --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
    --text-2xl: clamp(1.5rem, 1.3rem + 1vw, 1.875rem);
    --text-3xl: clamp(1.875rem, 1.6rem + 1.375vw, 2.25rem);
    --text-4xl: clamp(2.25rem, 1.9rem + 1.75vw, 3rem);
    --text-5xl: clamp(3rem, 2.5rem + 2.5vw, 3.75rem);

    /* Spacing System */
    --space-0: 0;
    --space-1: clamp(0.25rem, 0.2rem + 0.25vw, 0.375rem);
    --space-2: clamp(0.5rem, 0.4rem + 0.5vw, 0.75rem);
    --space-3: clamp(0.75rem, 0.6rem + 0.75vw, 1.125rem);
    --space-4: clamp(1rem, 0.8rem + 1vw, 1.5rem);
    --space-5: clamp(1.25rem, 1rem + 1.25vw, 1.875rem);
    --space-6: clamp(1.5rem, 1.2rem + 1.5vw, 2.25rem);
    --space-8: clamp(2rem, 1.6rem + 2vw, 3rem);
    --space-10: clamp(2.5rem, 2rem + 2.5vw, 3.75rem);
    --space-12: clamp(3rem, 2.4rem + 3vw, 4.5rem);
    --space-16: clamp(4rem, 3.2rem + 4vw, 6rem);
    --space-20: clamp(5rem, 4rem + 5vw, 7.5rem);
    --space-24: clamp(6rem, 4.8rem + 6vw, 9rem);
    --space-32: clamp(8rem, 6.4rem + 8vw, 12rem);

    /* Layout */
    --container-max-width: 1280px;
    --container-padding: clamp(1rem, 4vw, 2rem);
    --content-max-width: 65ch;

    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-2xl: 2rem;
    --radius-full: 9999px;

    /* Shadows - Sophisticated Multi-layer */
    --shadow-sm: 
        0 1px 2px 0 rgba(0, 0, 0, 0.05),
        0 1px 1px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 
        0 4px 6px -1px rgba(0, 0, 0, 0.1),
        0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 
        0 10px 15px -3px rgba(0, 0, 0, 0.1),
        0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 
        0 20px 25px -5px rgba(0, 0, 0, 0.1),
        0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 
        0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 600ms cubic-bezier(0.68, -0.55, 0.265, 1.55);

    /* Z-index layers */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
    --z-toast: 1080;
}

/* ========================
   Modern Reset & Base Styles
   ======================== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* Font Loading States */
html:not(.fonts-loaded) {
    font-family: 'Open Sans', system-ui, -apple-system, sans-serif;
}

html.fonts-loaded {
    font-family: var(--font-primary);
}

html {
    scroll-behavior: smooth;
    text-size-adjust: 100%;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-fallback);
    font-weight: var(--font-weight-regular);
    font-size: var(--text-base);
    line-height: 1.7;
    color: var(--gray-700);
    background-color: var(--white);
    overflow-x: hidden;
    min-height: 100vh;
    /* Font loading optimization */
    font-display: swap;
    /* Prevent layout shift during font loading */
    font-synthesis: none;
    -webkit-font-synthesis: none;
    /* Smooth transition when fonts load */
    transition: font-family 0.1s ease;
}

/* Apply Heebo font once loaded */
html.fonts-loaded body {
    font-family: var(--font-primary);
}

/* RTL Support */
html[dir="rtl"] {
    text-align: right;
}

/* Enhanced Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-bold);
    line-height: 1.2;
    color: var(--gray-900);
    margin-bottom: var(--space-4);
    letter-spacing: -0.025em;
}

h1 { 
    font-size: var(--text-5xl); 
    font-weight: var(--font-weight-black);
}

h2 { 
    font-size: var(--text-4xl); 
    font-weight: var(--font-weight-bold);
}

h3 { 
    font-size: var(--text-2xl); 
}

h4 { 
    font-size: var(--text-xl); 
}

h5 { 
    font-size: var(--text-lg); 
}

h6 { 
    font-size: var(--text-base); 
}

p {
    margin-bottom: var(--space-4);
    color: var(--gray-600);
    line-height: 1.7;
}

a {
    color: var(--green-600);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--green-700);
}

a:focus {
    outline: 2px solid var(--green-500);
    outline-offset: 2px;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

svg {
    display: block;
    max-width: 100%;
    height: auto;
}

/* ========================
   Layout Components
   ======================== */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-16);
}

.section-title {
    font-size: var(--text-4xl);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-6);
    font-weight: var(--font-weight-black);
    line-height: 1.1;
}

.section-description {
    font-size: var(--text-lg);
    color: var(--gray-600);
    max-width: var(--content-max-width);
    margin: 0 auto;
    line-height: 1.6;
}

/* ========================
   Advanced Button System
   ======================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-6);
    border: none;
    border-radius: var(--radius-lg);
    font-family: var(--font-primary);
    font-size: var(--text-base);
    font-weight: var(--font-weight-semibold);
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    min-height: 3.5rem;
    white-space: nowrap;
    user-select: none;
    transform: perspective(1px) translateZ(0);
    backface-visibility: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left var(--transition-slow);
}

.btn:hover::before {
    left: 100%;
}

.btn:active {
    transform: scale(0.98);
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--shadow-lg);
    border: 2px solid transparent;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.btn-secondary {
    background: var(--white);
    color: var(--brown-700);
    border: 2px solid var(--brown-700);
    box-shadow: var(--shadow-md);
}

.btn-secondary:hover {
    background: var(--brown-700);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-large {
    padding: var(--space-5) var(--space-8);
    font-size: var(--text-lg);
    min-height: 4rem;
    border-radius: var(--radius-xl);
}

.btn-icon {
    width: 1.25rem;
    height: 1.25rem;
    flex-shrink: 0;
}

.btn-whatsapp:hover {
    background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

/* ========================
   Header & Navigation - Mobile First
   ======================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--gray-200);
    z-index: var(--z-fixed);
    transition: all var(--transition-normal);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3) var(--container-padding);
    min-height: 80px;
}

@media (max-width: 768px) {
    .nav {
        min-height: 70px;
    }
    
    .logo-img {
        width: 56px;
        height: 56px;
    }
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.logo-img {
    width: 64px;
    height: 64px;
    object-fit: contain;
}

.nav-menu {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: var(--shadow-lg);
    padding: var(--space-4);
    gap: var(--space-4);
    border-bottom-left-radius: var(--radius-lg);
    border-bottom-right-radius: var(--radius-lg);
    transform: translateY(-10px);
    opacity: 0;
    transition: all var(--transition-normal);
    z-index: var(--z-dropdown);
}

.nav-menu.active {
    display: flex;
    transform: translateY(0);
    opacity: 1;
}

.nav-link {
    font-weight: var(--font-weight-medium);
    color: var(--gray-700);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    color: var(--green-600);
    background: var(--green-50);
    transform: translateX(4px);
}

.nav-toggle {
    display: flex;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
    padding: var(--space-2);
    border-radius: var(--radius-sm);
    transition: background-color var(--transition-fast);
}

.nav-toggle:hover {
    background-color: var(--gray-100);
}

.nav-toggle-line {
    width: 24px;
    height: 3px;
    background: var(--gray-700);
    border-radius: var(--radius-full);
    transition: all var(--transition-normal);
    transform-origin: center;
}

.nav-toggle.active .nav-toggle-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active .nav-toggle-line:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active .nav-toggle-line:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* ========================
   Hero Section - Sophisticated Design
   ======================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--gradient-light);
    position: relative;
    overflow: hidden;
    padding-top: 80px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(139, 69, 19, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(34, 139, 34, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-12);
    align-items: center;
    padding: var(--space-16) 0;
    position: relative;
    z-index: 2;
}

.hero-content {
    text-align: center;
    animation: fadeInUp 0.8s ease-out;
}

.hero-title {
    font-size: var(--text-5xl);
    line-height: 1.1;
    margin-bottom: var(--space-6);
    font-weight: var(--font-weight-black);
}

.hero-title-line {
    display: block;
    opacity: 1;
    transform: translateX(0);
}

.hero-title-line:nth-child(1) {
    animation-delay: 0.2s;
}

.hero-title-line:nth-child(2) {
    animation-delay: 0.4s;
}

.highlight {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: var(--text-xl);
    color: var(--gray-600);
    margin-bottom: var(--space-8);
    line-height: 1.6;
    opacity: 1;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
    justify-content: center;
    opacity: 1;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 1;
}

.hero-image-container {
    max-width: 500px;
    width: 100%;
}

.hero-image {
    width: 100%;
    height: auto;
    display: block;
    transition: all var(--transition-normal);
}

.hero-image:hover {
    transform: scale(1.02);
}

.hero-transition {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(180deg, transparent 0%, var(--white) 100%);
    pointer-events: none;
}

/* ========================
   Services Section
   ======================== */
.services {
    padding: var(--space-20) 0;
    background: linear-gradient(135deg, var(--white) 0%, var(--brown-50) 50%, var(--green-50) 100%);
}

.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-8);
    margin-bottom: var(--space-16);
}

.service-card {
    background: linear-gradient(145deg, var(--white) 0%, var(--gray-50) 100%);
    padding: var(--space-8);
    border-radius: var(--radius-2xl);
    text-align: center;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    border: 2px solid transparent;
    box-shadow: var(--shadow-md);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--green-200);
    background: linear-gradient(145deg, var(--white) 0%, var(--brown-50) 30%, var(--green-50) 100%);
}

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-6);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.service-icon svg {
    width: 40px;
    height: 40px;
}

.service-title {
    color: var(--gray-900);
    margin-bottom: var(--space-4);
    font-size: var(--text-2xl);
}

.service-description {
    color: var(--gray-600);
    margin-bottom: var(--space-6);
    line-height: 1.6;
    font-size: var(--text-base);
}

.service-features {
    list-style: none;
    text-align: right;
}

.service-features li {
    position: relative;
    padding-right: var(--space-6);
    margin-bottom: var(--space-3);
    color: var(--gray-600);
    font-size: var(--text-base);
}

.service-features li::before {
    content: '✓';
    position: absolute;
    right: 0;
    top: 0;
    color: var(--green-600);
    font-weight: var(--font-weight-bold);
    font-size: var(--text-lg);
}

.services-cta {
    text-align: center;
}

/* ========================
   Process Section
   ======================== */
.process {
    padding: var(--space-20) 0;
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--brown-50) 50%, var(--white) 100%);
}

.process-timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto var(--space-16);
}

.process-timeline::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    right: var(--space-6);
    width: 4px;
    background: linear-gradient(180deg, var(--brown-300) 0%, var(--brown-600) 30%, var(--green-600) 70%, var(--green-300) 100%);
    border-radius: var(--radius-full);
    box-shadow: 0 0 20px rgba(139, 69, 19, 0.3);
}

.process-step {
    display: flex;
    align-items: flex-start;
    gap: var(--space-6);
    margin-bottom: var(--space-12);
    position: relative;
}

.process-step-number {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-weight-bold);
    font-size: var(--text-xl);
    position: relative;
    z-index: 2;
    flex-shrink: 0;
    box-shadow: var(--shadow-md);
}

.process-step-content {
    flex: 1;
    background: linear-gradient(135deg, var(--white) 0%, var(--gray-50) 100%);
    padding: var(--space-6);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    text-align: right;
    border: 1px solid var(--gray-200);
    transition: all var(--transition-normal);
}

.process-step-content:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--white) 0%, var(--brown-50) 50%, var(--green-50) 100%);
    border-color: var(--green-200);
}

.process-step-content h3 {
    color: var(--gray-900);
    margin-bottom: var(--space-3);
    font-size: var(--text-xl);
}

.process-step-content p {
    color: var(--gray-600);
    margin-bottom: 0;
    line-height: 1.6;
}

.process-step-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-secondary);
    border-radius: var(--radius-full);
    color: var(--white);
    flex-shrink: 0;
    box-shadow: var(--shadow-md);
}

.process-step-icon svg {
    width: 30px;
    height: 30px;
}

.process-highlights {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
}

.highlight-card {
    background: linear-gradient(145deg, var(--white) 0%, var(--gray-50) 100%);
    padding: var(--space-6);
    border-radius: var(--radius-xl);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border: 2px solid transparent;
}

.highlight-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--green-200);
    background: linear-gradient(145deg, var(--white) 0%, var(--brown-50) 30%, var(--green-50) 100%);
}

.highlight-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--space-4);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-light);
    border-radius: var(--radius-full);
    color: var(--brown-700);
}

.highlight-icon svg {
    width: 32px;
    height: 32px;
}

.highlight-card h4 {
    color: var(--gray-900);
    margin-bottom: var(--space-3);
    font-size: var(--text-lg);
}

.highlight-card p {
    color: var(--gray-600);
    margin-bottom: 0;
    line-height: 1.6;
}

/* ========================
   About Section
   ======================== */
.about {
    padding: var(--space-20) 0;
    background: linear-gradient(135deg, var(--white) 0%, var(--brown-50) 40%, var(--green-50) 80%, var(--white) 100%);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-12);
    align-items: center;
}

.about-text {
    text-align: right;
}

.about-description {
    margin-bottom: var(--space-8);
}

.about-description p {
    font-size: var(--text-lg);
    line-height: 1.7;
    margin-bottom: var(--space-6);
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

.stat {
    text-align: center;
    padding: var(--space-4);
    background: linear-gradient(135deg, var(--white) 0%, var(--gray-50) 100%);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    transition: all var(--transition-normal);
}

.stat:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    background: linear-gradient(135deg, var(--white) 0%, var(--brown-50) 50%, var(--green-50) 100%);
}

.stat-number {
    font-size: var(--text-4xl);
    font-weight: var(--font-weight-black);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    display: block;
}

.stat-label {
    font-size: var(--text-base);
    color: var(--gray-600);
    margin-top: var(--space-2);
    font-weight: var(--font-weight-medium);
}

.about-visual {
    display: flex;
    justify-content: center;
}

.single-certificate {
    max-width: 600px;
    width: 100%;
}

.certificate-large {
    width: 100%;
    height: auto;
    display: block;
    transition: all var(--transition-normal);
}

.certificate-large:hover {
    transform: scale(1.02);
}

/* ========================
   Advantages Section
   ======================== */
.advantages {
    padding: var(--space-20) 0;
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--green-50) 30%, var(--brown-50) 70%, var(--gray-50) 100%);
}

.advantages-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-8);
    margin-bottom: var(--space-16);
}

.advantage-card {
    background: linear-gradient(145deg, var(--white) 0%, var(--gray-50) 100%);
    padding: var(--space-8);
    border-radius: var(--radius-2xl);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border: 2px solid transparent;
}

.advantage-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--green-200);
    background: linear-gradient(145deg, var(--white) 0%, var(--brown-50) 30%, var(--green-50) 100%);
}

.advantage-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-6);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-light);
    border-radius: var(--radius-full);
    color: var(--brown-700);
}

.advantage-icon svg {
    width: 40px;
    height: 40px;
}

.advantage-card h3 {
    color: var(--gray-900);
    margin-bottom: var(--space-4);
    font-size: var(--text-xl);
}

.advantage-card p {
    color: var(--gray-600);
    line-height: 1.6;
    margin-bottom: 0;
}

.advantages-cta {
    background: linear-gradient(135deg, var(--white) 0%, var(--brown-50) 50%, var(--green-50) 100%);
    padding: var(--space-12);
    border-radius: var(--radius-2xl);
    text-align: center;
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--gray-200);
    position: relative;
    overflow: hidden;
}

.cta-content {
    margin-bottom: var(--space-8);
}

.cta-content h3 {
    font-size: var(--text-2xl);
    color: var(--gray-900);
    margin-bottom: var(--space-4);
}

.cta-content p {
    font-size: var(--text-lg);
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* ========================
   Presentations Section
   ======================== */
.presentations {
    padding: var(--space-20) 0;
    background: linear-gradient(135deg, var(--brown-50) 0%, var(--white) 30%, var(--green-50) 70%, var(--gray-50) 100%);
    position: relative;
    overflow: hidden;
}

.presentations::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 30% 20%, rgba(139, 69, 19, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 70% 80%, rgba(34, 139, 34, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.presentations-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-8);
    margin-bottom: var(--space-16);
    position: relative;
    z-index: 2;
}

.presentation-card {
    background: var(--white);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    text-align: center;
    border: 2px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
}

.presentation-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-6);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    color: var(--white);
}

.presentation-icon svg {
    width: 40px;
    height: 40px;
}

.presentation-title {
    color: var(--gray-900);
    margin-bottom: var(--space-4);
    font-size: var(--text-xl);
    font-weight: var(--font-weight-bold);
}

.presentation-description {
    color: var(--gray-600);
    margin-bottom: var(--space-6);
    line-height: 1.6;
    font-size: var(--text-base);
}

.presentation-features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    justify-content: center;
    margin-bottom: var(--space-6);
}

.feature-tag {
    background: var(--gray-100);
    color: var(--gray-700);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--font-weight-medium);
}

.presentation-btn {
    min-width: 180px;
}

.presentations-cta {
    background: var(--gray-50);
    padding: var(--space-10);
    border-radius: var(--radius-xl);
    text-align: center;
    border: 1px solid var(--gray-200);
}

.presentations-cta .cta-content {
    margin-bottom: var(--space-6);
}

.presentations-cta .cta-content h3 {
    font-size: var(--text-xl);
    color: var(--gray-900);
    margin-bottom: var(--space-4);
    font-weight: var(--font-weight-bold);
}

.presentations-cta .cta-content p {
    font-size: var(--text-base);
    color: var(--gray-600);
    margin: 0 auto;
    line-height: 1.6;
}

/* ========================
   Join Our Team Section
   ======================== */
.join-team {
    padding: var(--space-20) 0;
    background: linear-gradient(135deg, rgba(139, 69, 19, 0.03) 0%, rgba(34, 139, 34, 0.03) 100%);
    position: relative;
    overflow: hidden;
}

.join-team::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 50%;
    height: 200%;
    background: radial-gradient(circle, rgba(34, 139, 34, 0.05) 0%, transparent 70%);
    animation: float 20s ease-in-out infinite;
}

.join-team-content {
    position: relative;
    z-index: 1;
}

.join-team-main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
    align-items: start;
    margin-top: var(--space-12);
}

.join-team-text {
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
}

.join-team-intro h3 {
    font-size: var(--text-2xl);
    color: var(--brown-700);
    margin-bottom: var(--space-4);
    font-weight: var(--font-weight-bold);
}

.join-team-intro p {
    font-size: var(--text-lg);
    color: var(--gray-700);
    line-height: 1.8;
}

.join-benefits h3 {
    font-size: var(--text-xl);
    color: var(--green-600);
    margin-bottom: var(--space-6);
    font-weight: var(--font-weight-semibold);
}

.benefits-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
}

.benefit-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    padding: var(--space-5);
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.benefit-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.benefit-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-light);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--green-600);
}

.benefit-icon svg {
    width: 28px;
    height: 28px;
}

.benefit-item h4 {
    font-size: var(--text-lg);
    color: var(--brown-700);
    font-weight: var(--font-weight-semibold);
}

.benefit-item p {
    font-size: var(--text-sm);
    color: var(--gray-600);
    line-height: 1.6;
}

.join-impact {
    padding: var(--space-6);
    background: linear-gradient(135deg, var(--brown-100) 0%, var(--green-100) 100%);
    border-radius: var(--radius-xl);
    border-right: 4px solid var(--green-500);
}

.impact-text {
    font-size: var(--text-base);
    color: var(--gray-700);
    line-height: 1.8;
    font-weight: var(--font-weight-medium);
}

.join-team-visual {
    position: sticky;
    top: calc(var(--header-height) + var(--space-4));
}

.join-card {
    background: var(--white);
    border-radius: var(--radius-2xl);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    overflow: hidden;
    transform: perspective(1000px) rotateY(-5deg);
    transition: transform 0.3s ease;
}

.join-card:hover {
    transform: perspective(1000px) rotateY(0deg);
}

.join-card-header {
    background: var(--gradient-primary);
    padding: var(--space-8);
    text-align: center;
}

.join-card-header h3 {
    color: var(--white);
    font-size: var(--text-xl);
    font-weight: var(--font-weight-bold);
    line-height: 1.6;
}

.join-card-body {
    padding: var(--space-8);
}

.requirements h4 {
    font-size: var(--text-lg);
    color: var(--brown-700);
    margin-bottom: var(--space-4);
    font-weight: var(--font-weight-semibold);
}

.requirements ul {
    list-style: none;
    padding: 0;
    margin-bottom: var(--space-8);
}

.requirements li {
    padding: var(--space-3) var(--space-4);
    margin-bottom: var(--space-2);
    background: var(--gray-50);
    border-radius: var(--radius-md);
    border-right: 3px solid var(--green-500);
    color: var(--gray-700);
    font-size: var(--text-base);
    position: relative;
    padding-right: var(--space-10);
}

.requirements li::before {
    content: '✓';
    position: absolute;
    right: var(--space-4);
    color: var(--green-600);
    font-weight: bold;
    font-size: var(--text-lg);
}

.join-cta {
    text-align: center;
    padding-top: var(--space-6);
    border-top: 1px solid var(--gray-200);
}

.join-cta p {
    font-size: var(--text-base);
    color: var(--gray-600);
    margin-bottom: var(--space-6);
    font-weight: var(--font-weight-medium);
}

.join-cta .btn {
    width: 100%;
    justify-content: center;
    padding: var(--space-5) var(--space-8);
    font-size: var(--text-lg);
}

@media (max-width: 1024px) {
    .join-team-main {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }
    
    .join-team-visual {
        position: relative;
        top: 0;
    }
    
    .join-card {
        transform: none;
    }
}

@media (max-width: 768px) {
    .benefits-grid {
        grid-template-columns: 1fr;
        gap: var(--space-4);
    }
    
    .benefit-item {
        padding: var(--space-4);
    }
    
    .join-card-header,
    .join-card-body {
        padding: var(--space-6);
    }
}

/* ========================
   Contact Section
   ======================== */
.contact {
    padding: var(--space-20) 0;
    background: linear-gradient(135deg, var(--white) 0%, var(--gray-50) 50%, var(--brown-50) 100%);
}

.contact-content {
    max-width: 1000px;
    margin: 0 auto;
}

.contact-methods {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
    margin-bottom: var(--space-16);
}

.contact-method {
    display: flex;
    gap: var(--space-4);
    padding: var(--space-6);
    background: linear-gradient(135deg, var(--white) 0%, var(--gray-50) 100%);
    border-radius: var(--radius-xl);
    transition: all var(--transition-normal);
    border: 2px solid transparent;
    box-shadow: var(--shadow-md);
}

.contact-method:hover {
    transform: translateY(-4px);
    background: linear-gradient(135deg, var(--white) 0%, var(--green-50) 50%, var(--brown-50) 100%);
    box-shadow: var(--shadow-lg);
    border-color: var(--green-200);
}

.contact-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    color: var(--white);
    flex-shrink: 0;
    box-shadow: var(--shadow-md);
}

.contact-icon svg {
    width: 32px;
    height: 32px;
}

.contact-info h3 {
    color: var(--gray-900);
    margin-bottom: var(--space-2);
    font-size: var(--text-xl);
}

.contact-info p {
    color: var(--gray-600);
    margin-bottom: var(--space-3);
    font-size: var(--text-sm);
}

.contact-link {
    color: var(--green-600);
    font-weight: var(--font-weight-semibold);
    font-size: var(--text-base);
    border-bottom: 2px solid transparent;
    transition: all var(--transition-fast);
}

.contact-link:hover {
    color: var(--green-700);
    border-bottom-color: var(--green-700);
}

.contact-cta {
    text-align: center;
    padding: var(--space-12);
    background: linear-gradient(135deg, var(--white) 0%, var(--green-50) 30%, var(--brown-50) 70%, var(--gray-50) 100%);
    border-radius: var(--radius-2xl);
    margin-bottom: var(--space-12);
    border: 2px solid var(--gray-200);
    box-shadow: var(--shadow-lg);
}

.contact-cta h3 {
    font-size: var(--text-2xl);
    color: var(--gray-900);
    margin-bottom: var(--space-4);
}

.contact-cta p {
    color: var(--gray-600);
    margin-bottom: var(--space-8);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.social-links {
    text-align: center;
}

.social-links p {
    margin-bottom: var(--space-4);
    color: var(--gray-600);
}

.social-icons {
    display: flex;
    justify-content: center;
    gap: var(--space-4);
}

.social-link {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    color: var(--white);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md);
}

.social-link:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.social-link svg {
    width: 28px;
    height: 28px;
}

/* ========================
   Footer
   ======================== */
.footer {
    background: linear-gradient(135deg, var(--gray-900) 0%, var(--brown-900) 30%, var(--green-900) 70%, var(--gray-900) 100%);
    color: var(--white);
    padding: var(--space-16) 0 var(--space-8);
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 20%, rgba(139, 69, 19, 0.1) 0%, transparent 40%),
        radial-gradient(circle at 80% 80%, rgba(34, 139, 34, 0.1) 0%, transparent 40%);
    pointer-events: none;
    z-index: 0;
}

.footer-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-12);
    margin-bottom: var(--space-12);
}

.footer-brand {
    text-align: right;
}

.footer-logo {
    width: 72px;
    height: 72px;
    object-fit: contain;
    margin-bottom: var(--space-4);
}

.footer-brand h3 {
    color: var(--white);
    margin-bottom: var(--space-4);
    font-size: var(--text-xl);
}

.footer-brand p {
    color: var(--gray-400);
    font-size: var(--text-base);
}

.footer-links {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-8);
}

.footer-column h4 {
    color: var(--white);
    margin-bottom: var(--space-4);
    font-size: var(--text-lg);
}

.footer-column ul {
    list-style: none;
}

.footer-column li {
    margin-bottom: var(--space-2);
}

.footer-column a {
    color: var(--gray-400);
    font-size: var(--text-base);
    transition: color var(--transition-fast);
}

.footer-column a:hover {
    color: var(--white);
}

.footer-bottom {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    align-items: center;
    padding-top: var(--space-8);
    border-top: 1px solid var(--gray-800);
    text-align: center;
    position: relative;
    z-index: 1;
}

.footer-bottom p {
    color: var(--gray-400);
    font-size: var(--text-sm);
    margin-bottom: 0;
}

.footer-social {
    display: flex;
    gap: var(--space-4);
}

.footer-social a {
    color: var(--gray-400);
    font-size: var(--text-sm);
    transition: color var(--transition-fast);
}

.footer-social a:hover {
    color: var(--white);
}

/* ========================
   Responsive Design - Mobile First
   ======================== */

/* Small Mobile (320px+) */
@media (min-width: 20rem) {
    .hero-image-container {
        max-width: 350px;
    }
}

/* Large Mobile (480px+) */
@media (min-width: 30rem) {
    .hero-image-container {
        max-width: 450px;
    }

    .contact-methods {
        grid-template-columns: repeat(2, 1fr);
    }

    .process-highlights {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Tablet (768px+) */
@media (min-width: 48rem) {
    .presentations-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-10);
    }
    .nav-menu {
        display: flex;
        flex-direction: row;
        position: static;
        background: transparent;
        box-shadow: none;
        padding: 0;
        gap: var(--space-6);
        border-radius: 0;
    }

    .nav-toggle {
        display: none;
    }

    .hero-container {
        grid-template-columns: 1fr 1fr;
        text-align: left;
    }

    .hero-content {
        text-align: right;
    }

    .hero-cta {
        justify-content: flex-start;
    }

    .hero-description {
        margin-left: 0;
        margin-right: 0;
    }

    .hero-image-container {
        max-width: 400px;
    }

    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-content {
        grid-template-columns: 1fr 1fr;
    }

    .about-text {
        text-align: right;
    }

    .certificates-grid {
        max-width: 400px;
    }

    .contact-methods {
        grid-template-columns: repeat(3, 1fr);
    }

    .process-highlights {
        grid-template-columns: repeat(3, 1fr);
    }

    .footer-content {
        grid-template-columns: 1fr 2fr;
    }

    .footer-links {
        grid-template-columns: repeat(3, 1fr);
    }

    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
}

/* Desktop (1024px+) */
@media (min-width: 64rem) {
    .hero-image-container {
        max-width: 500px;
    }

    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .advantages-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .process-step:nth-child(even) {
        flex-direction: row-reverse;
    }

    .process-step:nth-child(even) .process-step-content {
        text-align: left;
    }

    .process-timeline::before {
        right: 50%;
        transform: translateX(50%);
    }
}

/* Large Desktop (1280px+) */
@media (min-width: 80rem) {
    .hero-image-container {
        max-width: 550px;
    }

    .services-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .advantages-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ========================
   Animations & Keyframes
   ======================== */
/* EMERGENCY VISIBILITY OVERRIDE */
* {
    opacity: 1 !important;
    visibility: visible !important;
}

/* Keyframes for optional animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInFromRight {
    from {
        opacity: 0;
        transform: translateX(60px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInFromLeft {
    from {
        opacity: 0;
        transform: translateX(-60px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes bounce {
    0%, 20%, 53%, 80%, 100% {
        transform: translate3d(0,0,0);
    }
    40%, 43% {
        transform: translate3d(0, -15px, 0);
    }
    70% {
        transform: translate3d(0, -7px, 0);
    }
    90% {
        transform: translate3d(0, -3px, 0);
    }
}

/* ========================
   Accessibility & Performance
   ======================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Focus styles for keyboard navigation */
.btn:focus-visible,
.nav-link:focus-visible,
a:focus-visible {
    outline: 3px solid var(--green-500);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.8);
        --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.8);
        --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.8);
        --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.8);
    }
}

/* Print styles */
@media print {
    * {
        background: white !important;
        color: black !important;
        box-shadow: none !important;
    }
    
    .header,
    .footer,
    .btn,
    .contact,
    .nav-toggle {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.5;
    }
    
    h1, h2, h3 {
        page-break-after: avoid;
    }
    
    p, li {
        page-break-inside: avoid;
    }
}

/* Dark mode support (if needed later) */
@media (prefers-color-scheme: dark) {
    /* Dark mode styles can be added here if needed */
}

/* Loading states */
.loading {
    opacity: 0.5;
    pointer-events: none;
    cursor: wait;
}

/* Utility classes for developers */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.not-sr-only {
    position: static;
    width: auto;
    height: auto;
    padding: 0;
    margin: 0;
    overflow: visible;
    clip: auto;
    white-space: normal;
}

/* Aspect ratio utilities */
.aspect-square {
    aspect-ratio: 1 / 1;
}

.aspect-video {
    aspect-ratio: 16 / 9;
}

/* Text utilities */
.text-center {
    text-align: center;
}

.text-right {
    text-align: right;
}

.text-left {
    text-align: left;
}

/* Spacing utilities */
.mb-0 { margin-bottom: 0; }
.mt-auto { margin-top: auto; }
.mx-auto { margin-left: auto; margin-right: auto; }