/* ================================================
   GFSN - Global Food Surplus Network
   Premium Modern Responsive Website CSS
   ================================================ */

:root {
    --primary-green: #10b981;
    --primary-green-dark: #059669;
    --primary-green-light: #d1fae5;
    --light-bg: #f6f7f9;
    --card-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    --card-shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.12);
    --card-radius: 20px;
    --pastel-mint: #c1f5e8;
    --pastel-peach: #ffd6a5;
    --pastel-blue: #caffbf;
    --pastel-sand: #ffe5b4;
    --text-dark: #1f2937;
    --text-muted: #6b7280;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', 'Inter', sans-serif;
    background-color: var(--light-bg);
    color: var(--text-dark);
    line-height: 1.6;
}

/* ================================================
   NAVBAR STYLES
   ================================================ */
#mainNav {
    background: white;
    box-shadow: var(--card-shadow);
    backdrop-filter: blur(10px);
    z-index: 999;
}

#mainNav .navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark) !important;
    transition: all 0.3s ease;
}

#mainNav .navbar-brand:hover {
    transform: scale(1.05);
}

#mainNav .nav-link {
    color: var(--text-dark) !important;
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    position: relative;
}

#mainNav .nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--primary-green);
    transition: width 0.3s ease;
}

#mainNav .nav-link:hover::after,
#mainNav .nav-link.active::after {
    width: 100%;
}

#mainNav .nav-link.active {
    color: var(--primary-green) !important;
}

.dropdown-menu {
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    animation: slideInLeft 0.2s ease-out;
}

.dropdown-item {
    color: var(--text-dark);
    transition: all 0.2s ease;
}

.dropdown-item:hover {
    background: var(--primary-green-light);
    color: var(--primary-green);
    font-weight: 500;
}

.cta-btn {
    background: var(--primary-green) !important;
    color: white !important;
    font-weight: 600;
    border: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.cta-btn:hover {
    background: var(--primary-green-dark) !important;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
}

/* ================================================
   HERO SECTION
   ================================================ */
#home {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 80px 0;
    background: linear-gradient(135deg, var(--light-bg) 0%, #f0f9ff 100%);
}

.hero-content {
    padding: 0 20px;
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.hero-title .green-accent {
    color: var(--primary-green);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    max-width: 600px;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.hero-buttons .btn {
    padding: 0.75rem 2rem;
    font-weight: 600;
    border-radius: 50px;
    border: 2px solid transparent;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-primary-green {
    background: var(--primary-green);
    color: white;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.btn-primary-green:hover {
    background: var(--primary-green-dark);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(16, 185, 129, 0.4);
}

.btn-outline-green {
    background: transparent;
    color: var(--primary-green);
    border-color: var(--primary-green);
}

.btn-outline-green:hover {
    background: var(--primary-green);
    color: white;
    transform: translateY(-3px);
}

.hero-image-placeholder {
    min-height: 400px;
    background: linear-gradient(135deg, var(--pastel-mint) 0%, var(--pastel-blue) 100%);
    border-radius: var(--card-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 5rem;
    color: var(--primary-green);
    box-shadow: var(--card-shadow);
}

/* ================================================
   GENERAL SECTION STYLES
   ================================================ */
section {
    padding: 80px 0;
    position: relative;
}

section:nth-child(even) {
    background: white;
}

.section-heading {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.section-heading .green-accent {
    color: var(--primary-green);
}

.section-subheading {
    font-size: 1rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
}

/* ================================================
   PROBLEM SECTION
   ================================================ */
#problem {
    background: white;
}

.stat-card {
    background: linear-gradient(135deg, #fef3c7 0%, #fed7aa 100%);
    border-radius: var(--card-radius);
    padding: 2rem;
    text-align: center;
    box-shadow: var(--card-shadow);
    transition: all 0.3s ease;
    height: 100%;
}

.stat-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--card-shadow-hover);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-green);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.95rem;
    color: var(--text-muted);
    font-weight: 600;
}

/* ================================================
   SOLUTION SECTION
   ================================================ */
#solution {
    background: var(--light-bg);
}

.feature-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 3rem;
}

.feature-card {
    background: white;
    border-radius: var(--card-radius);
    padding: 2rem;
    text-align: center;
    box-shadow: var(--card-shadow);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--card-shadow-hover);
}

.feature-icon {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin: 0 auto 1rem;
    background: linear-gradient(135deg, var(--pastel-mint) 0%, var(--pastel-blue) 100%);
    color: var(--primary-green);
}

.feature-card h4 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.feature-card p {
    font-size: 0.95rem;
    color: var(--text-muted);
}

/* ================================================
   STAKEHOLDERS SECTION
   ================================================ */
#stakeholders {
    background: white;
}

.stakeholder-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.stakeholder-card {
    background: white;
    border-radius: var(--card-radius);
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transition: all 0.3s ease;
    border-top: 5px solid transparent;
}

.stakeholder-card:nth-child(1) {
    border-top-color: var(--primary-green);
}

.stakeholder-card:nth-child(2) {
    border-top-color: #f97316;
}

.stakeholder-card:nth-child(3) {
    border-top-color: #3b82f6;
}

.stakeholder-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--card-shadow-hover);
}

.stakeholder-header {
    padding: 2rem;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.stakeholder-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    flex-shrink: 0;
}

.stakeholder-card:nth-child(1) .stakeholder-icon {
    background: var(--primary-green);
}

.stakeholder-card:nth-child(2) .stakeholder-icon {
    background: #f97316;
}

.stakeholder-card:nth-child(3) .stakeholder-icon {
    background: #3b82f6;
}

.stakeholder-title {
    font-size: 1.3rem;
    font-weight: 700;
}

.stakeholder-body {
    padding: 0 2rem 2rem;
}

.stakeholder-body h6 {
    font-size: 0.85rem;
    text-transform: uppercase;
    color: var(--text-muted);
    font-weight: 700;
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
}

.stakeholder-body ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.stakeholder-body li {
    font-size: 0.9rem;
    color: var(--text-dark);
    padding: 0.3rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.stakeholder-body li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary-green);
    font-weight: 700;
}

.stakeholder-footer {
    background: var(--light-bg);
    padding: 1rem 2rem;
    border-top: 1px solid #e5e7eb;
    font-size: 0.85rem;
    color: var(--text-muted);
    font-style: italic;
}

/* ================================================
   CREDITS SECTION
   ================================================ */
#credits {
    background: var(--light-bg);
}

.flow-container {
    display: flex;
    align-items: center;
    gap: 1rem;
    overflow-x: auto;
    padding: 2rem 0;
    margin-top: 2rem;
}

.flow-box {
    background: white;
    border-radius: var(--card-radius);
    padding: 2rem;
    min-width: 200px;
    box-shadow: var(--card-shadow);
    text-align: center;
    flex-shrink: 0;
}

.flow-box h5 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--primary-green);
}

.flow-box small {
    display: block;
    color: var(--text-muted);
    font-size: 0.8rem;
    line-height: 1.6;
}

.flow-arrow {
    font-size: 1.5rem;
    color: var(--primary-green);
    flex-shrink: 0;
}

.credits-info {
    background: white;
    border-radius: var(--card-radius);
    padding: 2rem;
    box-shadow: var(--card-shadow);
    margin-top: 2rem;
}

.credits-info h5 {
    color: var(--primary-green);
    font-weight: 700;
    margin-bottom: 1rem;
}

.credits-info ul {
    list-style: none;
    padding: 0;
}

.credits-info li {
    padding: 0.6rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-dark);
}

.credits-info li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-green);
    font-weight: 700;
}

/* ================================================
   PROCESS SECTION
   ================================================ */
#process {
    background: white;
}

.process-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.process-card {
    background: white;
    border-radius: var(--card-radius);
    padding: 2.5rem;
    text-align: center;
    box-shadow: var(--card-shadow);
    transition: all 0.3s ease;
    position: relative;
    border: 2px solid var(--light-bg);
}

.process-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--card-shadow-hover);
    border-color: var(--primary-green);
}

.process-number {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--pastel-mint) 0%, var(--pastel-blue) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-green);
    margin: 0 auto 1rem;
}

.process-card h4 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.process-card ul {
    list-style: none;
    padding: 0;
    text-align: left;
    background: var(--light-bg);
    border-radius: 10px;
    padding: 1rem;
    margin-top: 1rem;
}

.process-card li {
    font-size: 0.9rem;
    color: var(--text-dark);
    padding: 0.3rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.process-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-green);
    font-weight: 700;
}

/* ================================================
   IMPACT SECTION
   ================================================ */
#impact {
    background: var(--light-bg);
}

.impact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 3rem;
}

.impact-stat-tiles {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.impact-tile {
    background: white;
    border-radius: var(--card-radius);
    padding: 1.5rem;
    text-align: center;
    box-shadow: var(--card-shadow);
    transition: all 0.3s ease;
}

.impact-tile:hover {
    transform: translateY(-5px);
}

.impact-tile-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-green);
    margin-bottom: 0.5rem;
}

.impact-tile-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 600;
}

.impact-info-box {
    background: white;
    border-radius: var(--card-radius);
    padding: 2rem;
    box-shadow: var(--card-shadow);
    margin-bottom: 1.5rem;
}

.impact-info-box h5 {
    color: var(--primary-green);
    font-weight: 700;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.impact-info-box ul {
    list-style: none;
    padding: 0;
}

.impact-info-box li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-dark);
    font-size: 0.95rem;
}

.impact-info-box li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-green);
    font-weight: 700;
    font-size: 1.2rem;
}

.chart-container {
    background: white;
    border-radius: var(--card-radius);
    padding: 2rem;
    box-shadow: var(--card-shadow);
    position: relative;
    height: 400px;
}

@media (max-width: 768px) {
    .impact-grid {
        grid-template-columns: 1fr;
    }
}

/* ================================================
   PILOT SECTION
   ================================================ */
#pilot {
    background: white;
}

.pilot-timeline {
    display: grid;
    gap: 1.5rem;
    margin-top: 3rem;
}

.pilot-card {
    background: white;
    border-radius: var(--card-radius);
    padding: 2rem;
    box-shadow: var(--card-shadow);
    border-left: 5px solid var(--primary-green);
    transition: all 0.3s ease;
}

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

.pilot-card h5 {
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.pilot-card p {
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

/* ================================================
   RAMADAN SECTION
   ================================================ */
.ramadan-box {
    background: linear-gradient(135deg, var(--pastel-mint) 0%, var(--pastel-peach) 100%);
    border-radius: var(--card-radius);
    padding: 2.5rem;
    box-shadow: var(--card-shadow);
    border-left: 5px solid var(--primary-green);
}

.ramadan-box h4 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.ramadan-box p {
    margin-bottom: 0.5rem;
    color: var(--text-dark);
    line-height: 1.8;
}

/* ================================================
   POLICY SECTION
   ================================================ */
#policy {
    background: var(--light-bg);
}

.accordion {
    gap: 1rem;
}

.accordion-item {
    border: none;
    background: white;
    border-radius: var(--card-radius);
    box-shadow: var(--card-shadow);
    margin-bottom: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.accordion-item:hover {
    box-shadow: var(--card-shadow-hover);
}

.accordion-button {
    background: white;
    border: none;
    font-weight: 600;
    color: var(--text-dark);
    padding: 1.5rem;
    border-radius: 0 !important;
}

.accordion-button:not(.collapsed) {
    background: linear-gradient(135deg, var(--primary-green-light) 0%, var(--pastel-blue) 100%);
    color: var(--primary-green-dark);
    box-shadow: none;
}

.accordion-body {
    padding: 1.5rem;
    color: var(--text-dark);
    line-height: 1.8;
}

.accordion-body ul {
    list-style: none;
    padding: 0;
    margin: 1rem 0;
}

.accordion-body li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.accordion-body li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary-green);
}

/* ================================================
   CONTACT FORM
   ================================================ */
#contact {
    padding: 80px 0 0;
}

.contact-form {
    background: white;
    border-radius: var(--card-radius);
    padding: 2.5rem;
    box-shadow: var(--card-shadow);
    margin-bottom: 3rem;
}

.contact-form h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.contact-form .form-label {
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.contact-form .form-control,
.contact-form .form-select {
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
}

.contact-form .form-control:focus,
.contact-form .form-select:focus {
    border-color: var(--primary-green);
    box-shadow: 0 0 0 0.2rem rgba(16, 185, 129, 0.25);
}

.contact-form textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-form .btn {
    padding: 0.85rem 2rem;
    font-weight: 600;
    border-radius: 50px;
    background: var(--primary-green);
    color: white;
    border: none;
    transition: all 0.3s ease;
    margin-top: 1rem;
}

.contact-form .btn:hover {
    background: var(--primary-green-dark);
    transform: translateY(-2px);
}

/* ================================================
   ANIMATIONS
   ================================================ */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-up {
    animation: fadeUp 0.6s ease-out;
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-in-left {
    animation: slideInLeft 0.6s ease-out;
}

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

.slide-in-right {
    animation: slideInRight 0.6s ease-out;
}

/* ================================================
   UTILITIES
   ================================================ */
.text-success {
    color: var(--primary-green) !important;
}

.bg-success {
    background: var(--primary-green) !important;
}

.hover-link {
    transition: all 0.3s ease;
}

.hover-link:hover {
    color: var(--primary-green) !important;
    text-decoration: underline !important;
}

.container-fluid {
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
}

/* ================================================
   RESPONSIVE DESIGN
   ================================================ */
@media (max-width: 768px) {
    section {
        padding: 50px 0;
    }

    .section-heading {
        font-size: 1.8rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .hero-buttons .btn {
        width: 100%;
        text-align: center;
    }

    .flow-container {
        flex-direction: column;
        gap: 1rem;
    }

    .flow-arrow {
        transform: rotate(90deg);
    }

    .feature-cards,
    .stakeholder-cards,
    .process-cards {
        grid-template-columns: 1fr;
    }

    .impact-stat-tiles {
        grid-template-columns: 1fr;
    }

    #mainNav .navbar-collapse {
        margin-top: 1rem;
    }

    .contact-form {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.8rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .section-heading {
        font-size: 1.5rem;
    }

    #mainNav {
        padding: 0.5rem 0;
    }

    .cta-btn {
        padding: 0.6rem 1.5rem !important;
        font-size: 0.9rem;
    }
}