/* =================================================================
   YOUNGO Food & Agriculture - Modern Landing Page
   Professional Design System with Brand Colors
   ================================================================= */

/* ===== VARIABLES ===== */
:root {
    /* Brand Colors */
    --color-lime: #a4c639;
    --color-lime-dark: #8faf2a;
    --color-lime-light: #b8d957;
    --color-forest: #5a7d5e;
    --color-forest-dark: #4a6d4e;
    --color-slate: #4a6b7c;
    --color-slate-dark: #3a5a6b;

    /* Light Mode Colors */
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f9fafb;
    --color-bg-tertiary: #f3f4f6;
    --color-border-light: #e5e7eb;
    --color-border-medium: #d1d5db;
    --color-text-primary: #111827;
    --color-text-secondary: #374151;
    --color-text-tertiary: #4b5563;

    /* Neutrals */
    --color-white: #ffffff;
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-900: #111827;

    /* Gradients */
    --gradient-hero: linear-gradient(
        135deg,
        #5a7d5e 0%,
        #4a6b7c 60%,
        #3a5a6b 100%
    );
    --gradient-card-1: linear-gradient(
        135deg,
        rgba(164, 198, 57, 0.1) 0%,
        rgba(90, 125, 94, 0.05) 100%
    );
    --gradient-card-2: linear-gradient(
        135deg,
        rgba(90, 125, 94, 0.1) 0%,
        rgba(74, 107, 124, 0.05) 100%
    );
    --gradient-card-3: linear-gradient(
        135deg,
        rgba(74, 107, 124, 0.1) 0%,
        rgba(164, 198, 57, 0.05) 100%
    );

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --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);

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    --space-32: 8rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-3xl: 2rem;
    --radius-full: 9999px;

    /* Typography */
    --font-sans:
        "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        sans-serif;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== DARK MODE ===== */
@media (prefers-color-scheme: dark) {
    :root {
        /* Dark Mode Colors */
        --color-bg-primary: #0f1419;
        --color-bg-secondary: #1a1f26;
        --color-bg-tertiary: #252b33;
        --color-border-light: #2d3440;
        --color-border-medium: #3d444d;
        --color-text-primary: #f3f4f6;
        --color-text-secondary: #d1d5db;
        --color-text-tertiary: #9ca3af;

        /* Adjusted gradients for dark mode */
        --gradient-card-1: linear-gradient(
            135deg,
            rgba(164, 198, 57, 0.15) 0%,
            rgba(90, 125, 94, 0.1) 100%
        );
        --gradient-card-2: linear-gradient(
            135deg,
            rgba(90, 125, 94, 0.15) 0%,
            rgba(74, 107, 124, 0.1) 100%
        );
        --gradient-card-3: linear-gradient(
            135deg,
            rgba(74, 107, 124, 0.15) 0%,
            rgba(164, 198, 57, 0.1) 100%
        );

        /* Enhanced shadows for dark mode */
        --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
        --shadow-md:
            0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
        --shadow-lg:
            0 10px 15px -3px rgba(0, 0, 0, 0.5),
            0 4px 6px -2px rgba(0, 0, 0, 0.3);
        --shadow-xl:
            0 20px 25px -5px rgba(0, 0, 0, 0.6),
            0 10px 10px -5px rgba(0, 0, 0, 0.4);
        --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
    }
}

/* ===== BASE STYLES ===== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    color: var(--color-text-primary);
    background: var(--color-bg-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition:
        background-color var(--transition-base),
        color var(--transition-base);
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-text-primary);
    letter-spacing: -0.02em;
}

h1 {
    font-size: clamp(2.25rem, 5vw, 4rem);
}
h2 {
    font-size: clamp(1.75rem, 4vw, 2.75rem);
}
h3 {
    font-size: clamp(1.25rem, 2.5vw, 1.75rem);
}
h4 {
    font-size: clamp(1.125rem, 2vw, 1.375rem);
}

p {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-text-tertiary);
}

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

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
}

/* ===== HEADER ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border-light);
    z-index: 1000;
    transition:
        transform var(--transition-base),
        box-shadow var(--transition-base);
}

@media (prefers-color-scheme: dark) {
    .header {
        background: rgba(15, 20, 25, 0.95);
        border-bottom: 1px solid var(--color-border-light);
    }
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

.header__content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.header__logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-forest);
    text-decoration: none;
}

.header__logo-icon {
    flex-shrink: 0;
}

.header__logo-text {
    font-weight: 700;
    letter-spacing: -0.01em;
}

.header__nav {
    display: flex;
    gap: var(--space-8);
}

.nav-link {
    color: var(--color-text-secondary);
    font-weight: 600;
    font-size: 0.9375rem;
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    text-decoration: none;
    position: relative;
}

.nav-link:hover {
    color: var(--color-lime);
    background: rgba(164, 198, 57, 0.1);
}

@media (max-width: 768px) {
    .header__nav {
        gap: var(--space-3);
    }

    .nav-link {
        font-size: 0.875rem;
        padding: var(--space-1) var(--space-2);
    }

    .header__logo-text {
        font-size: 0.875rem;
    }
}

/* ===== HERO SECTION ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-24) 0 var(--space-16);
    overflow: hidden;
}

.hero__background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
}

.hero__gradient {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-hero);
}

.hero__pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        radial-gradient(
            circle at 20% 50%,
            rgba(164, 198, 57, 0.1) 0%,
            transparent 50%
        ),
        radial-gradient(
            circle at 80% 80%,
            rgba(90, 125, 94, 0.1) 0%,
            transparent 50%
        ),
        radial-gradient(
            circle at 40% 90%,
            rgba(74, 107, 124, 0.1) 0%,
            transparent 50%
        );
    opacity: 0.6;
}

.hero__content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 1000px;
    margin: 0 auto;
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(8px);
    border-radius: var(--radius-full);
    border: 1px solid rgba(255, 255, 255, 0.2);
    margin-bottom: var(--space-6);
    animation: fadeInDown 0.8s ease-out;
}

.hero__badge-icon {
    font-size: 1.25rem;
}

.hero__badge-text {
    color: var(--color-white);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.hero__title {
    color: var(--color-white);
    margin-bottom: var(--space-6);
    line-height: 1.1;
    animation: fadeInUp 0.8s ease-out 0.2s both;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    font-size: clamp(2.25rem, 5vw, 4rem);
}

.hero__title-highlight {
    background: linear-gradient(
        135deg,
        var(--color-lime-light),
        var(--color-lime)
    );
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__subtitle {
    font-size: clamp(1rem, 1.8vw, 1.25rem);
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: var(--space-8);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.hero__actions {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--space-12);
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.hero__stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
    max-width: 600px;
    margin: 0 auto;
    animation: fadeInUp 0.8s ease-out 0.8s both;
}

.hero__stat {
    text-align: center;
}

.hero__stat-number {
    font-size: clamp(1.75rem, 3.5vw, 2.5rem);
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: var(--space-2);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.hero__stat-label {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.85);
    font-weight: 500;
}

.hero__scroll {
    position: absolute;
    bottom: var(--space-8);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    z-index: 2;
    animation: bounce 2s infinite;
}

.hero__scroll-line {
    width: 1px;
    height: 40px;
    background: rgba(255, 255, 255, 0.3);
}

.hero__scroll-text {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

@media (max-width: 768px) {
    .hero {
        min-height: 100vh;
        padding: calc(var(--space-16) + 40px) var(--space-4) var(--space-12);
    }

    .hero__badge {
        font-size: 0.8125rem;
        padding: var(--space-2) var(--space-3);
    }

    .hero__title {
        font-size: clamp(1.75rem, 8vw, 2.5rem);
        margin-bottom: var(--space-4);
    }

    .hero__subtitle {
        font-size: clamp(0.9375rem, 4vw, 1.125rem);
        margin-bottom: var(--space-6);
    }

    .hero__stats {
        grid-template-columns: 1fr;
        gap: var(--space-6);
        margin-top: var(--space-8);
    }

    .hero__stat-number {
        font-size: clamp(2rem, 10vw, 3rem);
    }

    .hero__actions {
        flex-direction: column;
        align-items: stretch;
        gap: var(--space-3);
    }

    .hero__actions .btn {
        width: 100%;
        justify-content: center;
    }

    .hero__scroll {
        display: none;
    }
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-size: 1rem;
    font-weight: 700;
    border-radius: var(--radius-xl);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    white-space: nowrap;
    letter-spacing: -0.01em;
}

.btn--primary {
    background: var(--color-lime);
    color: var(--color-white);
    box-shadow: 0 4px 14px rgba(164, 198, 57, 0.4);
}

.btn--primary:hover {
    background: var(--color-lime-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(164, 198, 57, 0.5);
}

.btn--secondary {
    background: rgba(255, 255, 255, 0.15);
    color: var(--color-white);
    border-color: rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(8px);
}

.btn--secondary:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
}

.btn--outline {
    background: rgba(255, 255, 255, 0.15);
    color: var(--color-white);
    border-color: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(8px);
}

.btn--outline:hover {
    background: var(--color-white);
    color: var(--color-forest);
    border-color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(255, 255, 255, 0.3);
}

.btn--lg {
    padding: var(--space-4) var(--space-8);
    font-size: 1.125rem;
}

/* ===== POSITION PAPERS SECTION ===== */
.papers {
    padding: var(--space-24) 0;
    background: linear-gradient(
        to bottom,
        var(--color-bg-primary),
        var(--color-bg-secondary)
    );
}

.papers__header {
    text-align: center;
    margin-bottom: var(--space-16);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.papers__header-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--gradient-card-1);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-4);
    font-weight: 600;
    color: var(--color-forest);
    font-size: 0.875rem;
}

.papers__title {
    margin-bottom: var(--space-4);
    background: linear-gradient(
        135deg,
        var(--color-forest),
        var(--color-slate)
    );
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.papers__subtitle {
    font-size: 1.0625rem;
    color: var(--color-text-tertiary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.papers__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-8);
    max-width: 1400px;
    margin: 0 auto;
}

.paper-card {
    position: relative;
    background: var(--color-bg-primary);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    cursor: pointer;
    transition: all var(--transition-base);
    border: 2px solid var(--color-border-light);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    min-height: 320px;
    display: flex;
    flex-direction: column;
}

.paper-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-card-1);
    opacity: 0;
    transition: opacity var(--transition-base);
    z-index: 0;
}

.paper-card:hover::before {
    opacity: 1;
}

.paper-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-lime);
}

.paper-card__gradient {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.paper-card:hover .paper-card__gradient {
    opacity: 1;
}

.paper-card__gradient--1 {
    background: linear-gradient(90deg, var(--color-lime), var(--color-forest));
}
.paper-card__gradient--2 {
    background: linear-gradient(90deg, var(--color-forest), var(--color-slate));
}
.paper-card__gradient--3 {
    background: linear-gradient(90deg, var(--color-slate), var(--color-lime));
}
.paper-card__gradient--4 {
    background: linear-gradient(
        90deg,
        var(--color-lime-light),
        var(--color-lime)
    );
}
.paper-card__gradient--5 {
    background: linear-gradient(90deg, var(--color-forest), var(--color-lime));
}
.paper-card__gradient--6 {
    background: linear-gradient(90deg, var(--color-slate), var(--color-forest));
}

.paper-card__icon-wrapper {
    position: relative;
    z-index: 1;
    margin-bottom: var(--space-6);
}

.paper-card__icon {
    width: 80px;
    height: 80px;
    font-size: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-2xl);
    transition: all var(--transition-base);
}

.paper-card__icon--1 {
    background: linear-gradient(
        135deg,
        rgba(164, 198, 57, 0.15),
        rgba(90, 125, 94, 0.1)
    );
}
.paper-card__icon--2 {
    background: linear-gradient(
        135deg,
        rgba(90, 125, 94, 0.15),
        rgba(74, 107, 124, 0.1)
    );
}
.paper-card__icon--3 {
    background: linear-gradient(
        135deg,
        rgba(74, 107, 124, 0.15),
        rgba(164, 198, 57, 0.1)
    );
}
.paper-card__icon--4 {
    background: linear-gradient(
        135deg,
        rgba(164, 198, 57, 0.15),
        rgba(164, 198, 57, 0.1)
    );
}
.paper-card__icon--5 {
    background: linear-gradient(
        135deg,
        rgba(90, 125, 94, 0.15),
        rgba(164, 198, 57, 0.1)
    );
}
.paper-card__icon--6 {
    background: linear-gradient(
        135deg,
        rgba(74, 107, 124, 0.15),
        rgba(90, 125, 94, 0.1)
    );
}

.paper-card:hover .paper-card__icon {
    transform: scale(1.1) rotate(-5deg);
}

.paper-card__content {
    position: relative;
    z-index: 1;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.paper-card__title {
    font-size: 1.5rem;
    color: var(--color-forest);
    margin-bottom: var(--space-3);
    font-weight: 700;
}

.paper-card__description {
    color: var(--color-text-tertiary);
    margin-bottom: var(--space-6);
    flex: 1;
    line-height: 1.6;
}

.paper-card__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: var(--color-lime);
    font-weight: 700;
    font-size: 1rem;
}

.paper-card__arrow {
    transition: transform var(--transition-base);
}

.paper-card:hover .paper-card__arrow {
    transform: translateX(8px);
}

@media (max-width: 768px) {
    .papers {
        padding: var(--space-20) var(--space-4);
    }

    .papers__header {
        margin-bottom: var(--space-12);
    }

    .papers__header-badge {
        font-size: 0.8125rem;
    }

    .papers__title {
        font-size: clamp(1.75rem, 8vw, 2.5rem);
    }

    .papers__subtitle {
        font-size: 0.9375rem;
    }

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

    .paper-card {
        min-height: auto;
        padding: var(--space-6);
    }

    .paper-card__icon {
        width: 64px;
        height: 64px;
        font-size: 2rem;
    }

    .paper-card__title {
        font-size: 1.25rem;
    }
}

/* ===== ABOUT SECTION ===== */
.about {
    padding: var(--space-24) 0;
    background: var(--color-bg-primary);
}

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

.about__badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--gradient-card-1);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-4);
    font-weight: 600;
    color: var(--color-forest);
    font-size: 0.875rem;
}

.about__title {
    margin-bottom: var(--space-5);
    color: var(--color-forest);
}

.about__text {
    font-size: 1.25rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-10);
}

.about__vision {
    background: var(--gradient-card-1);
    padding: var(--space-8);
    border-radius: var(--radius-2xl);
    border: 2px solid var(--color-lime);
    height: fit-content;
}

.about__vision-title {
    color: var(--color-forest);
    margin-bottom: var(--space-4);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.about__vision-text {
    color: var(--color-text-secondary);
    font-size: 1.125rem;
    line-height: 1.7;
    margin: 0;
}

.about__features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
}

.feature-card {
    background: linear-gradient(
        135deg,
        rgba(164, 198, 57, 0.03),
        rgba(90, 125, 94, 0.03)
    );
    padding: var(--space-8);
    border-radius: var(--radius-2xl);
    border: 2px solid var(--color-border-light);
    transition: all var(--transition-base);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-lime), var(--color-forest));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

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

.feature-card:hover {
    border-color: var(--color-lime);
    transform: translateY(-6px);
    box-shadow: 0 12px 30px rgba(164, 198, 57, 0.2);
    background: linear-gradient(
        135deg,
        rgba(164, 198, 57, 0.08),
        rgba(90, 125, 94, 0.05)
    );
}

.feature-card__icon {
    font-size: 3rem;
    margin-bottom: var(--space-4);
    display: inline-flex;
    width: 80px;
    height: 80px;
    align-items: center;
    justify-content: center;
    background: linear-gradient(
        135deg,
        rgba(164, 198, 57, 0.15),
        rgba(90, 125, 94, 0.1)
    );
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.feature-card:hover .feature-card__icon {
    transform: scale(1.1) rotate(-5deg);
    background: linear-gradient(
        135deg,
        rgba(164, 198, 57, 0.25),
        rgba(90, 125, 94, 0.15)
    );
}

.feature-card__title {
    font-size: 1.25rem;
    color: var(--color-forest);
    margin-bottom: var(--space-3);
    font-weight: 700;
    letter-spacing: -0.01em;
}

.feature-card__text {
    font-size: 1rem;
    color: var(--color-text-tertiary);
    line-height: 1.6;
    font-weight: 500;
}

@media (max-width: 768px) {
    .about {
        padding: var(--space-20) var(--space-4);
    }

    .about__grid {
        grid-template-columns: 1fr;
        gap: var(--space-10);
    }

    .about__badge {
        font-size: 0.8125rem;
    }

    .about__title {
        font-size: clamp(1.75rem, 8vw, 2.5rem);
        margin-bottom: var(--space-4);
    }

    .about__text {
        font-size: 1.0625rem;
        margin-bottom: var(--space-8);
    }

    .about__vision {
        padding: var(--space-6);
    }

    .about__vision-title {
        font-size: 1.25rem;
        margin-bottom: var(--space-3);
    }

    .about__vision-text {
        font-size: 1rem;
    }

    .about__features {
        grid-template-columns: 1fr;
        gap: var(--space-4);
    }

    .feature-card {
        padding: var(--space-6);
    }

    .feature-card__icon {
        width: 64px;
        height: 64px;
        font-size: 2.5rem;
    }

    .feature-card__title {
        font-size: 1.125rem;
    }

    .feature-card__text {
        font-size: 0.9375rem;
    }
}

/* ===== CTA SECTION ===== */
.cta {
    padding: var(--space-32) 0;
    background: var(--gradient-hero);
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        radial-gradient(
            circle at 30% 50%,
            rgba(164, 198, 57, 0.15) 0%,
            transparent 50%
        ),
        radial-gradient(
            circle at 70% 50%,
            rgba(90, 125, 94, 0.1) 0%,
            transparent 50%
        );
    opacity: 0.8;
}

.cta__content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.cta__title {
    color: var(--color-white);
    margin-bottom: var(--space-6);
    font-size: clamp(2.5rem, 5vw, 3.75rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.1;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.cta__text {
    font-size: clamp(1.125rem, 2vw, 1.5rem);
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: var(--space-10);
    line-height: 1.6;
    font-weight: 500;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.cta__buttons {
    display: flex;
    gap: var(--space-5);
    justify-content: center;
    flex-wrap: wrap;
}

@media (max-width: 768px) {
    .cta {
        padding: var(--space-20) var(--space-4);
    }

    .cta__title {
        font-size: clamp(1.75rem, 8vw, 2.5rem);
        margin-bottom: var(--space-4);
    }

    .cta__text {
        font-size: clamp(1rem, 4vw, 1.125rem);
        margin-bottom: var(--space-8);
    }

    .cta__buttons {
        flex-direction: column;
        align-items: stretch;
        gap: var(--space-3);
    }

    .cta__buttons .btn {
        width: 100%;
        justify-content: center;
    }
}

/* ===== FOOTER ===== */
.footer {
    background: linear-gradient(135deg, #3d5a4a 0%, #35525f 100%);
    color: var(--color-white);
    padding: var(--space-20) 0 var(--space-6);
}

.footer__main {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--space-16);
    margin-bottom: var(--space-12);
    padding-bottom: var(--space-12);
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.footer__brand-title {
    color: var(--color-white);
    margin-bottom: var(--space-4);
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.footer__brand-text {
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.7;
    font-size: 1.0625rem;
}

.footer__links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
}

.footer__link {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-5);
    background: rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-xl);
    text-decoration: none;
    color: var(--color-white);
    transition: all var(--transition-base);
    border: 2px solid rgba(255, 255, 255, 0.1);
}

.footer__link:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-4px);
    border-color: var(--color-lime);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.footer__link-icon {
    font-size: 2rem;
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    background: rgba(164, 198, 57, 0.2);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.footer__link:hover .footer__link-icon {
    background: var(--color-lime);
}

.footer__link-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.footer__link-title {
    font-weight: 700;
    font-size: 1.0625rem;
    margin-bottom: 0;
    letter-spacing: -0.01em;
}

.footer__link-subtitle {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 500;
}

.footer__contact {
    display: flex;
    gap: var(--space-12);
    margin-bottom: var(--space-10);
    flex-wrap: wrap;
    justify-content: center;
    padding: var(--space-6) 0;
}

.footer__contact-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    color: rgba(255, 255, 255, 0.95);
    font-size: 1.0625rem;
    font-weight: 500;
}

.footer__contact-icon {
    font-size: 1.5rem;
    width: 40px;
    height: 40px;
    background: rgba(164, 198, 57, 0.15);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.footer__bottom {
    text-align: center;
    padding-top: var(--space-8);
    border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.footer__bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9375rem;
    font-weight: 500;
}

@media (max-width: 768px) {
    .footer {
        padding: var(--space-16) var(--space-4) var(--space-6);
    }

    .footer__main {
        grid-template-columns: 1fr;
        gap: var(--space-10);
        margin-bottom: var(--space-10);
        padding-bottom: var(--space-10);
    }

    .footer__brand-title {
        font-size: 1.5rem;
        margin-bottom: var(--space-3);
    }

    .footer__brand-text {
        font-size: 0.9375rem;
    }

    .footer__links {
        grid-template-columns: 1fr;
        gap: var(--space-3);
    }

    .footer__link {
        padding: var(--space-4);
    }

    .footer__link-icon {
        width: 48px;
        height: 48px;
        font-size: 1.75rem;
    }

    .footer__link-title {
        font-size: 1rem;
    }

    .footer__link-subtitle {
        font-size: 0.875rem;
    }

    .footer__contact {
        flex-direction: column;
        gap: var(--space-4);
        align-items: flex-start;
        padding: var(--space-4) 0;
    }

    .footer__contact-item {
        font-size: 0.9375rem;
    }

    .footer__bottom p {
        font-size: 0.875rem;
    }
}

/* ===== PDF MODAL ===== */
.pdf-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
}

.pdf-modal.active {
    display: flex;
}

.pdf-modal__overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    animation: fadeIn 0.3s ease-out;
}

.pdf-modal__container {
    position: relative;
    width: 100%;
    max-width: 1200px;
    height: 90vh;
    background: var(--color-bg-primary);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-2xl);
    display: flex;
    flex-direction: column;
    animation: slideUp 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.pdf-modal__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-6);
    border-bottom: 1px solid var(--color-border-light);
    background: var(--color-bg-secondary);
}

.pdf-modal__title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-forest);
    margin: 0;
}

.pdf-modal__close {
    background: none;
    border: none;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-lg);
    cursor: pointer;
    color: var(--color-text-tertiary);
    transition: all var(--transition-fast);
}

.pdf-modal__close:hover {
    background: var(--color-lime);
    color: var(--color-white);
    transform: rotate(90deg);
}

.pdf-modal__body {
    flex: 1;
    position: relative;
    overflow: hidden;
    background: var(--color-bg-tertiary);
}

.pdf-modal__iframe {
    width: 100%;
    height: 100%;
    border: none;
}

.pdf-modal__loading {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-primary);
    gap: var(--space-4);
}

.pdf-modal__loading.hidden {
    display: none;
}

.pdf-modal__spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--color-border-light);
    border-top: 4px solid var(--color-lime);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.pdf-modal__loading p {
    color: var(--color-text-tertiary);
    font-weight: 700;
    margin: 0;
}

.pdf-modal__footer {
    display: flex;
    gap: var(--space-3);
    padding: var(--space-6);
    border-top: 1px solid var(--color-border-light);
    background: var(--color-bg-secondary);
}

.pdf-modal__footer .btn {
    flex: 1;
    justify-content: center;
}

.pdf-modal__footer .btn--outline {
    background: var(--color-bg-primary);
    color: var(--color-forest);
    border-color: var(--color-border-medium);
}

.pdf-modal__footer .btn--outline:hover {
    background: var(--color-forest);
    color: var(--color-white);
    border-color: var(--color-forest);
}

@media (max-width: 768px) {
    .pdf-modal__container {
        height: 95vh;
        border-radius: var(--radius-xl);
    }

    .pdf-modal__header,
    .pdf-modal__footer {
        padding: var(--space-4);
    }

    .pdf-modal__footer {
        flex-direction: column;
    }
}

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(50px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

@keyframes bounce {
    0%,
    100% {
        transform: translateX(-50%) translateY(0);
    }
    50% {
        transform: translateX(-50%) translateY(-10px);
    }
}

/* Scroll animations */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-in-up.animate {
    opacity: 1;
    transform: translateY(0);
}