@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');
@import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css');

:root {
    --color-primary: #00d97e;
    --color-primary-dark: #00a85f;
    --color-primary-light: #1eff8f;
    --color-secondary: #0f766e;
    --color-secondary-dark: #0d5c5c;
    --color-usage: #1e90ff;
    --color-production: #ebe730;
    --color-consumption: #ff8c42;
    --color-injection: #00d97e;
    --color-danger: #ff4757;
    --color-warning: #ffa502;
    --color-success: #00d97e;
    --color-info: #0099ff;
    --color-bg: #f0fdf7;
    --color-surface: #ffffff;
    --color-text: #0f3a2f;
    --color-text-light: #64748b;
    --color-border: #c5e7dc;
    --shadow-sm: 0 1px 2px 0 rgba(0, 217, 126, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 217, 126, 0.1);
    --shadow-lg: 0 10px 30px rgba(0, 217, 126, 0.15);
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --transition: all 0.3s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 16px; scroll-behavior: smooth; }

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    font-weight: 400;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
}

a { color: var(--color-primary-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ============================================
   App Container & Layout
   ============================================ */

.app-container {
    display: grid;
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr auto;
    min-height: 100vh;
}

/* ============================================
   Header & Navigation
   ============================================ */

.app-header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: white;
    box-shadow: 0 10px 30px rgba(0, 217, 126, 0.15);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    min-height: 70px;
}

.header-branding {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-shrink: 0;
    text-decoration: none;
    color: white;
}

.header-branding:hover { text-decoration: none; }

.header-branding i {
    font-size: 2rem;
    opacity: 0.95;
}

.branding-text {
    display: flex;
    flex-direction: column;
}

.branding-text h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
    line-height: 1;
    letter-spacing: -0.5px;
}

.branding-text p {
    font-size: 0.75rem;
    opacity: 0.85;
    margin: 0.25rem 0 0 0;
    line-height: 1;
}

.header-nav {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: flex-end;
}

.nav-menu {
    display: flex;
    gap: 0;
    align-items: center;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    color: white;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    border: none;
    background: none;
    cursor: pointer;
    transition: var(--transition);
    border-bottom: 2px solid transparent;
    white-space: nowrap;
}

.nav-link:hover {
    background-color: rgba(255, 255, 255, 0.15);
    color: white;
    text-decoration: none;
    border-bottom-color: rgba(255, 255, 255, 0.4);
}

.nav-link.active {
    color: white;
    border-bottom-color: rgba(255, 255, 255, 0.6);
    background-color: rgba(255, 255, 255, 0.1);
}

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

.nav-right {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: 1.5rem;
}

.nav-github {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem;
    color: white;
    text-decoration: none;
    font-size: 1.4rem;
    opacity: 0.9;
    transition: var(--transition);
    border-radius: var(--radius-sm);
}

.nav-github:hover {
    opacity: 1;
    background-color: rgba(255, 255, 255, 0.15);
    text-decoration: none;
}

.lang-toggle {
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 999px;
    padding: 2px;
    gap: 0;
}

.lang-btn {
    padding: 0.3rem 0.7rem;
    border: none;
    background: none;
    color: rgba(255, 255, 255, 0.7);
    font-family: 'Poppins', sans-serif;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    border-radius: 999px;
    transition: var(--transition);
    line-height: 1;
}

.lang-btn.active {
    background: white;
    color: var(--color-secondary);
}

.lang-btn:hover:not(.active) {
    color: white;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.5rem;
    color: white;
    flex-shrink: 0;
}

/* ============================================
   Buttons
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
    font-family: 'Poppins', sans-serif;
}

.btn:hover { text-decoration: none; }

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 217, 126, 0.25);
    color: white;
}

.btn-secondary {
    background-color: var(--color-bg);
    color: var(--color-text);
    border: 2px solid var(--color-border);
}

.btn-secondary:hover {
    background-color: var(--color-border);
    border-color: var(--color-primary);
}

.btn-outline-white {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.btn-outline-white:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: white;
    color: white;
    transform: translateY(-2px);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-sm {
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
    background: linear-gradient(160deg, var(--color-primary) 0%, var(--color-secondary) 60%, var(--color-secondary-dark) 100%);
    color: white;
    padding: 6rem 2rem 5rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 200%;
    background: radial-gradient(ellipse, rgba(255, 255, 255, 0.06) 0%, transparent 70%);
    pointer-events: none;
}



.hero-inner {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text h2 {
    font-size: 3.2rem;
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
}

.hero-text p {
    font-size: 1.15rem;
    opacity: 0.9;
    line-height: 1.7;
    margin-bottom: 2rem;
    max-width: 540px;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-visual {
    position: relative;
}

.hero-screenshot {
    width: 100%;
    border-radius: var(--radius-lg);
    transition: transform 0.5s ease;
    cursor: pointer;
}

/* ============================================
   Image Modal
   ============================================ */

.img-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: zoom-out;
    opacity: 0;
    transition: opacity 0.25s ease;
    padding: 2rem;
}

.img-modal-overlay.active {
    opacity: 1;
}

.img-modal-overlay img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    cursor: default;
}


/* ============================================
   Section Base
   ============================================ */

.section {
    padding: 5rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 3.5rem;
}

.section-header h2 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--color-text);
}

.section-header p {
    font-size: 1.05rem;
    color: var(--color-text-light);
    max-width: 640px;
    margin: 0 auto;
}

/* ============================================
   Feature Blocks
   ============================================ */

.feature-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-bottom: 5rem;
}

.feature-block:last-child { margin-bottom: 0; }

.feature-block.reverse .feature-media { order: -1; }

.feature-content h3 {
    font-size: 1.7rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--color-text);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-bottom: none;
    padding-bottom: 0;
}

.feature-content h3 i {
    color: var(--color-primary);
    font-size: 1.4rem;
}

.feature-content p {
    color: var(--color-text-light);
    font-size: 1rem;
    line-height: 1.7;
}

.feature-media {
    position: relative;
}

.feature-img {
    width: 100%;
    border-radius: var(--radius-lg);
    border: 2px solid var(--color-border);
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    cursor: pointer;
}

.feature-img:hover {
    box-shadow: 0 15px 40px rgba(0, 217, 126, 0.2);
    transform: translateY(-4px);
}

.feature-media-duo {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.feature-media-duo .feature-img {
    width: 100%;
}

/* Mobile feature */
.feature-media-mobile {
    display: flex;
    justify-content: center;
}

.feature-media-mobile .feature-mobile-img {
    width: 280px;
    max-width: 100%;
}

/* ============================================
   Energy Plan Demo (Trophy Section)
   ============================================ */

.trophy-section {
    padding: 5rem 2rem;
    background: linear-gradient(180deg, var(--color-bg) 0%, rgba(0, 217, 126, 0.04) 50%, var(--color-bg) 100%);
}

.trophy-inner {
    max-width: 1400px;
    margin: 0 auto;
}

.trophy-header {
    text-align: center;
    margin-bottom: 3rem;
}

.trophy-header h2 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.trophy-header p {
    color: var(--color-text-light);
    font-size: 1.05rem;
    line-height: 1.7;
    max-width: 720px;
    margin: 0 auto;
}

/* Optimization grid — matches app layout */
.optimization-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.card {
    background-color: var(--color-surface);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary);
}

.card-full-width {
    grid-column: 1 / -1;
}

.card h3 {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-light);
    margin-bottom: 0.5rem;
    border-bottom: none;
    padding-bottom: 0;
}

.card-full-width h3 {
    font-size: 1.25rem;
    text-transform: none;
    letter-spacing: normal;
    font-weight: 600;
    color: var(--color-text);
    border-bottom: 2px solid var(--color-primary);
    padding-bottom: 0.75rem;
    margin-bottom: 1.5rem;
}

.summary-card {
    text-align: center;
    padding: 1.5rem 1rem;
}

.summary-value {
    font-family: 'Poppins', sans-serif;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-primary-dark);
    line-height: 1.2;
}

.summary-label {
    font-size: 0.8rem;
    color: var(--color-text-light);
    margin-top: 0.25rem;
}

.chart-container-lg {
    height: 420px;
}

.chart-container {
    position: relative;
    width: 100%;
}

.chart-container canvas {
    max-width: 100%;
}

/* ============================================
   Integrations Section
   ============================================ */

.integrations-section {
    padding: 5rem 2rem;
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.integrations-inner {
    max-width: 1400px;
    margin: 0 auto;
}

.integrations-intro {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    margin-bottom: 3.5rem;
}

.integrations-text h2 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.integrations-text p {
    color: var(--color-text-light);
    font-size: 1.05rem;
    line-height: 1.7;
    margin-bottom: 1rem;
}

.integrations-text p:last-child { margin-bottom: 0; }

.oss-badges {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.oss-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: linear-gradient(135deg, rgba(0, 217, 126, 0.08) 0%, rgba(15, 118, 110, 0.04) 100%);
    border: 1px solid rgba(0, 217, 126, 0.25);
    border-radius: var(--radius-lg);
    font-weight: 600;
    color: var(--color-text);
    font-size: 0.95rem;
    transition: var(--transition);
    text-decoration: none;
}

.oss-badge:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
    text-decoration: none;
}

.oss-badge i { color: var(--color-primary); font-size: 1.1rem; }

.brand-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.brand-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1.5rem 1rem;
    background: var(--color-bg);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: var(--transition);
    text-align: center;
}

.brand-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
}

.brand-card i {
    font-size: 2rem;
    color: var(--color-primary);
}

.brand-card span {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--color-text);
}

.brand-card .brand-desc {
    font-size: 0.75rem;
    color: var(--color-text-light);
    font-weight: 400;
}

.integrations-cta {
    text-align: center;
    padding: 2rem 0 0;
}

.integrations-cta p {
    color: var(--color-text-light);
    margin-bottom: 1rem;
}

/* ============================================
   CTA Section
   ============================================ */

.cta-section {
    padding: 5rem 2rem;
    background: linear-gradient(160deg, var(--color-primary) 0%, var(--color-secondary) 60%, var(--color-secondary-dark) 100%);
    color: white;
    text-align: center;
}

.cta-inner {
    max-width: 640px;
    margin: 0 auto;
}

.cta-inner h2 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: white;
}

.cta-inner p {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 2rem;
    line-height: 1.7;
}

.cta-inner .hero-actions {
    justify-content: center;
}

/* ============================================
   Footer
   ============================================ */

.app-footer {
    background-color: var(--color-surface);
    border-top: 1px solid var(--color-border);
    padding: 2rem;
    text-align: center;
    color: var(--color-text-light);
    font-size: 0.875rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--color-text-light);
    font-weight: 500;
    font-size: 0.875rem;
}

.footer-links a:hover {
    color: var(--color-primary);
}

/* ============================================
   Documentation Page
   ============================================ */

.docs-layout {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 3rem;
    align-items: start;
}

.docs-sidebar {
    position: sticky;
    top: 90px;
    background: var(--color-surface);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    max-height: calc(100vh - 110px);
    overflow-y: auto;
}

.docs-sidebar h3 {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-light);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--color-border);
}

.docs-sidebar nav {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.docs-sidebar nav a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    color: var(--color-text);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    border-left: 3px solid transparent;
}

.docs-sidebar nav a:hover {
    background: rgba(0, 217, 126, 0.05);
    color: var(--color-primary);
    text-decoration: none;
}

.docs-sidebar nav a.active {
    background: rgba(0, 217, 126, 0.1);
    color: var(--color-primary);
    border-left-color: var(--color-primary);
}

.docs-sidebar nav a i {
    width: 18px;
    text-align: center;
    color: var(--color-primary);
    font-size: 0.85rem;
}

.docs-content {
    min-width: 0;
}

.docs-section {
    background: var(--color-surface);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    scroll-margin-top: 90px;
}

.docs-section:hover {
    box-shadow: var(--shadow-md);
}

.docs-section h2 {
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--color-text);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-bottom: 2px solid var(--color-primary);
    padding-bottom: 0.75rem;
}

.docs-section h2 i {
    color: var(--color-primary);
    font-size: 1.4rem;
}

.docs-section h3 {
    font-size: 1.15rem;
    font-weight: 600;
    margin: 1.75rem 0 0.75rem;
    color: var(--color-text);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-bottom: none;
    padding-bottom: 0;
}

.docs-section h3 i {
    color: var(--color-primary);
    font-size: 0.95rem;
}

.docs-section h4 {
    font-size: 1rem;
    font-weight: 600;
    margin: 1.25rem 0 0.5rem;
    color: var(--color-text);
}

.docs-section p {
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--color-text);
}

.docs-section ul, .docs-section ol {
    margin: 0.5rem 0 1rem 1.25rem;
    font-size: 0.95rem;
    line-height: 1.7;
}

.docs-section li { margin-bottom: 0.4rem; }

.docs-section dl { margin: 0.5rem 0 1rem 0; }

.docs-section dt {
    font-weight: 600;
    color: var(--color-text);
    margin-top: 0.75rem;
    margin-bottom: 0.25rem;
    font-size: 0.95rem;
}

.docs-section dd {
    margin-left: 0;
    margin-bottom: 0.5rem;
    color: var(--color-text-light);
    font-size: 0.92rem;
    padding-left: 1rem;
    border-left: 2px solid var(--color-border);
}

.docs-section code {
    background: rgba(0, 217, 126, 0.08);
    padding: 0.1rem 0.35rem;
    border-radius: var(--radius-sm);
    font-size: 0.85em;
}

.docs-section a {
    color: var(--color-primary-dark);
    font-weight: 500;
}

.guide-steps {
    list-style: none;
    counter-reset: guide-step;
    padding: 0;
    margin: 0.5rem 0 1rem;
}

.guide-steps li {
    counter-increment: guide-step;
    display: flex;
    align-items: baseline;
    gap: 0.75rem;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--color-border);
}

.guide-steps li:last-child { border-bottom: none; }

.guide-steps li::before {
    content: counter(guide-step);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: var(--color-primary);
    color: white;
    border-radius: 50%;
    font-size: 0.8rem;
    font-weight: 700;
    flex-shrink: 0;
}

.guide-steps a {
    color: var(--color-primary-dark);
    font-weight: 600;
}

.step-desc {
    color: var(--color-text-light);
    font-size: 0.9rem;
}

.info-banner {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    margin: 1rem 0;
    background: linear-gradient(135deg, rgba(0, 217, 126, 0.08) 0%, rgba(15, 118, 110, 0.04) 100%);
    border: 1px solid rgba(0, 217, 126, 0.25);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    color: var(--color-text);
}

.info-banner i {
    color: var(--color-primary);
    font-size: 1.1rem;
    flex-shrink: 0;
}

/* Example cards for energy contract */
.example-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(380px, 100%), 1fr));
    gap: 1.5rem;
    margin: 1rem 0;
}

.example-card {
    background: var(--color-bg);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
}

.example-card h4 {
    margin-top: 0;
    margin-bottom: 0.5rem;
}

.example-card > p {
    color: var(--color-text-light);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.example-component {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.9rem;
}

.example-component:last-child { border-bottom: none; }

.example-component-name {
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 0.15rem;
}

.example-component-detail {
    color: var(--color-text-light);
    font-size: 0.85rem;
}

/* ============================================
   Animations
   ============================================ */

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.fade-in-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.fade-in-right {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 1024px) {
    .hero-inner {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .hero-text h2 { font-size: 2.5rem; }

    .hero-visual { max-width: 600px; margin: 0 auto; }

    .hero-screenshot {
        transform: none;
    }

    .feature-block {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .feature-block.reverse .feature-media { order: 0; }

    .feature-media-mobile .feature-mobile-img {
        width: 60%;
        max-width: 320px;
    }

    .trophy-header {
        text-align: center;
    }

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

    .integrations-intro {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .docs-layout {
        grid-template-columns: 1fr;
    }

    .docs-sidebar {
        position: static;
        max-height: none;
    }
}

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

    .header-branding i { font-size: 1.5rem; }
    .branding-text h1 { font-size: 1.25rem; }
    .branding-text p { font-size: 0.65rem; }

    .nav-menu {
        display: none;
    }

    .nav-toggle { display: block; }

    .nav-menu.active {
        display: flex;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background-color: var(--color-surface);
        border-top: 2px solid var(--color-border);
        z-index: 999;
        padding: 0.5rem 0;
    }

    .nav-menu.active .nav-link {
        color: var(--color-text);
        border-bottom: none;
        padding: 0.75rem 1.25rem;
    }

    .nav-menu.active .nav-link:hover {
        background-color: rgba(0, 217, 126, 0.05);
        color: var(--color-primary);
    }

    .nav-menu.active .nav-link.active {
        background-color: rgba(0, 217, 126, 0.1);
        color: var(--color-primary);
    }

    .nav-menu.active .nav-right {
        padding: 0.75rem 1.25rem;
        margin-left: 0;
        border-top: 1px solid var(--color-border);
    }

    .hero {
        padding: 4rem 1.5rem 3rem;
    }

    .hero-text h2 {
        font-size: 2rem;
    }

    .hero-text p {
        font-size: 1rem;
    }

    .section {
        padding: 3rem 1.5rem;
    }

    .section-header h2 {
        font-size: 1.75rem;
    }

    .feature-content h3 {
        font-size: 1.35rem;
    }

    .feature-media-duo {
        grid-template-columns: 1fr;
    }

    .energy-cards {
        grid-template-columns: 1fr 1fr;
    }

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

    .summary-value {
        font-size: 1.3rem;
    }

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

    .chart-container-lg { height: 300px; }

    .trophy-section { padding: 3rem 1.5rem; }

    .integrations-section { padding: 3rem 1.5rem; }

    .docs-layout { padding: 1rem; }

    .docs-section { padding: 1.5rem; }

    .docs-section h2 { font-size: 1.3rem; }
}

@media (max-width: 480px) {
    .hero-text h2 { font-size: 1.7rem; }

    .hero-actions { flex-direction: column; }
    .hero-actions .btn { width: 100%; }

    .energy-cards { grid-template-columns: 1fr; }

    .optimization-grid { grid-template-columns: 1fr; }

    .brand-grid { grid-template-columns: 1fr 1fr; }

    .btn-lg { padding: 0.85rem 1.5rem; font-size: 1rem; }
}