/* ===== CSS Variables - Sunsomon Brand ===== */
:root {
    /* Brand Colors */
    --color-accent: #F86C1A;
    --color-accent-hover: #E55D0D;
    --color-accent-light: rgba(248, 108, 26, 0.1);
    --color-accent-glow: rgba(248, 108, 26, 0.3);

    --color-primary: #C8C2C0;
    --color-primary-light: #E5E2E0;

    --color-neutral: #171714;
    --color-neutral-light: #2A2A26;
    --color-neutral-lighter: #3D3D38;

    --color-secondary: #656361;
    --color-secondary-light: #8A8886;

    /* Text Colors */
    --text-primary: #FFFFFF;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);
    --text-dark: #171714;

    /* Background Colors */
    --bg-dark: #0D0D0C;
    --bg-card: rgba(255, 255, 255, 0.03);
    --bg-card-hover: rgba(255, 255, 255, 0.06);
    --bg-glass: rgba(23, 23, 20, 0.8);

    /* Border Colors */
    --border-color: rgba(255, 255, 255, 0.1);
    --border-color-hover: rgba(255, 255, 255, 0.2);

    /* Gradients */
    --gradient-accent: linear-gradient(135deg, #F86C1A 0%, #FF8F4D 100%);
    --gradient-dark: linear-gradient(180deg, #171714 0%, #0D0D0C 100%);
    --gradient-card: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-accent: 0 4px 24px rgba(248, 108, 26, 0.3);

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3.5rem;
    --font-size-6xl: 4.5rem;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Z-index */
    --z-header: 100;
    --z-modal: 200;
    --z-tooltip: 300;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-dark);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

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

ul,
ol {
    list-style: none;
}

button,
input,
select,
textarea {
    font-family: inherit;
    font-size: inherit;
    border: none;
    outline: none;
    background: none;
}

button {
    cursor: pointer;
}

/* ===== Container ===== */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* ===== Typography ===== */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.2;
}

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

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    font-weight: 600;
    font-size: var(--font-size-sm);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-accent);
    color: white;
    box-shadow: var(--shadow-accent);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 28px rgba(248, 108, 26, 0.4);
}

.btn-outline {
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    background: transparent;
}

.btn-outline:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    background: var(--color-accent-light);
}

.btn-ghost {
    color: var(--text-secondary);
    background: transparent;
}

.btn-ghost:hover {
    color: var(--text-primary);
    background: var(--bg-card);
}

.btn-lg {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: var(--font-size-base);
}

.btn-block {
    width: 100%;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-header);
    padding: var(--spacing-md) 0;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

.header.scrolled {
    padding: var(--spacing-sm) 0;
    background: rgba(13, 13, 12, 0.95);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-xl);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo-icon {
    width: 32px;
    height: 32px;
    color: var(--color-accent);
}

.logo-text {
    font-size: var(--font-size-xl);
    font-weight: 700;
    letter-spacing: -0.02em;
}

.logo-image {
    height: 32px;
    width: auto;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav-link {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-accent);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--spacing-sm);
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-fast);
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: calc(80px + var(--spacing-3xl)) 0 var(--spacing-3xl);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 80% 50% at 50% -20%, rgba(248, 108, 26, 0.15), transparent);
}

.hero-particles {
    position: absolute;
    inset: 0;
    opacity: 0.5;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.hero-content {
    max-width: 600px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.badge-icon {
    font-size: var(--font-size-lg);
}

.hero-title {
    font-size: clamp(var(--font-size-4xl), 5vw, var(--font-size-6xl));
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: var(--spacing-lg);
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 500px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: var(--color-accent);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border-color);
}

/* Hero Visual */
.hero-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-panel {
    position: relative;
    width: 100%;
    max-width: 450px;
    aspect-ratio: 1;
}

.panel-glow {
    position: absolute;
    inset: -20%;
    background: radial-gradient(circle, rgba(248, 108, 26, 0.2), transparent 70%);
    animation: pulse 4s ease-in-out infinite;
}

/* 3D Solar Panel Styles */
.hero-panel-3d {
    position: relative;
    width: 100%;
    max-width: 500px;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.solar-panel-image {
    width: 100%;
    max-width: 840px;
    height: auto;
    position: relative;
    z-index: 2;
    filter: drop-shadow(0 30px 60px rgba(0, 0, 0, 0.4));
    animation: panelFloat 6s ease-in-out infinite;
}

.panel-glow-effect {
    position: absolute;
    width: 120%;
    height: 120%;
    background: radial-gradient(ellipse at center, rgba(248, 108, 26, 0.3) 0%, rgba(248, 108, 26, 0.1) 30%, transparent 70%);
    z-index: 1;
    animation: glowPulse 3s ease-in-out infinite;
}

.panel-sun-rays {
    position: absolute;
    top: -30%;
    right: -30%;
    width: 80%;
    height: 80%;
    background: conic-gradient(from 45deg,
            transparent 0deg,
            rgba(248, 108, 26, 0.15) 10deg,
            transparent 20deg,
            transparent 60deg,
            rgba(248, 108, 26, 0.1) 70deg,
            transparent 80deg,
            transparent 120deg,
            rgba(248, 108, 26, 0.12) 130deg,
            transparent 140deg,
            transparent 180deg,
            rgba(248, 108, 26, 0.08) 190deg,
            transparent 200deg);
    z-index: 0;
    animation: rotateSunRays 20s linear infinite;
    filter: blur(10px);
}

.panel-highlight {
    position: absolute;
    top: 10%;
    left: 20%;
    width: 60%;
    height: 30%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.4), transparent 60%);
    z-index: 3;
    pointer-events: none;
    filter: blur(20px);
    opacity: 0;
    animation: highlightSweep 4s ease-in-out infinite;
}

/* 3D Panel Animations */
@keyframes panelFloat {

    0%,
    100% {
        transform: translateY(0) rotateX(0deg) rotateY(0deg);
    }

    25% {
        transform: translateY(-10px) rotateX(2deg) rotateY(-2deg);
    }

    50% {
        transform: translateY(-5px) rotateX(0deg) rotateY(0deg);
    }

    75% {
        transform: translateY(-15px) rotateX(-2deg) rotateY(2deg);
    }
}

@keyframes glowPulse {

    0%,
    100% {
        opacity: 0.6;
        transform: scale(1);
    }

    50% {
        opacity: 1;
        transform: scale(1.1);
    }
}

@keyframes rotateSunRays {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

@keyframes highlightSweep {

    0%,
    100% {
        opacity: 0;
        transform: translateX(-100%) translateY(-50%);
    }

    20%,
    40% {
        opacity: 0.6;
    }

    50% {
        opacity: 0;
        transform: translateX(150%) translateY(50%);
    }
}

/* Hero Scroll */
.hero-scroll {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
}

.scroll-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-muted);
    font-size: var(--font-size-sm);
    animation: bounce 2s infinite;
}

.scroll-indicator svg {
    opacity: 0.5;
}

/* ===== Section Styles ===== */
section {
    padding: var(--spacing-4xl) 0;
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto var(--spacing-3xl);
}

.section-tag {
    display: inline-block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-md);
}

.section-title {
    font-size: clamp(var(--font-size-2xl), 4vw, var(--font-size-4xl));
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
}

/* ===== Features Section ===== */
.features {
    background: var(--gradient-dark);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.feature-card {
    padding: var(--spacing-xl);
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.feature-card:hover {
    border-color: var(--color-accent);
    background: var(--bg-card-hover);
    transform: translateY(-4px);
}

.feature-icon {
    width: 48px;
    height: 48px;
    margin-bottom: var(--spacing-lg);
    color: var(--color-accent);
}

.feature-icon svg {
    width: 100%;
    height: 100%;
}

.feature-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
}

.feature-text {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

/* ===== Calculator Section ===== */
.calculator-section {
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--color-neutral) 100%);
}

.calculator-wrapper {
    max-width: 1000px;
    margin: 0 auto;
}

.calculator {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-xl);
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
}

.calculator-form {
    display: flex;
    flex-direction: column;
}

.calc-step {
    display: none;
    animation: fadeIn 0.3s ease;
}

.calc-step.active {
    display: block;
}

.calc-step-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-xl);
}

/* Object Type Cards */
.object-type-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.object-type-card {
    cursor: pointer;
}

.object-type-card input {
    display: none;
}

.object-type-card .card-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xl);
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.object-type-card input:checked+.card-content {
    border-color: var(--color-accent);
    background: var(--color-accent-light);
}

.object-type-card:hover .card-content {
    border-color: var(--color-accent);
}

.card-icon {
    font-size: 48px;
}

.card-title {
    font-weight: 600;
}

.card-desc {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

/* Range Input */
.calc-field {
    margin-bottom: var(--spacing-xl);
}

.calc-label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
}

.range-wrapper {
    padding: var(--spacing-md) 0;
}

.range-input {
    width: 100%;
    height: 8px;
    background: var(--border-color);
    border-radius: var(--radius-full);
    appearance: none;
    cursor: pointer;
}

.range-input::-webkit-slider-thumb {
    appearance: none;
    width: 24px;
    height: 24px;
    background: var(--color-accent);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: var(--shadow-accent);
    transition: transform var(--transition-fast);
}

.range-input::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

.range-values {
    display: flex;
    justify-content: space-between;
    margin-top: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.range-current {
    color: var(--color-accent);
    font-weight: 600;
}

.calc-hint {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin-top: var(--spacing-sm);
}

/* Select */
.select-wrapper {
    position: relative;
}

.calc-select {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    cursor: pointer;
    appearance: none;
}

.calc-select:focus {
    border-color: var(--color-accent);
}

.select-wrapper::after {
    content: '▼';
    position: absolute;
    right: var(--spacing-lg);
    top: 50%;
    transform: translateY(-50%);
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    pointer-events: none;
}

/* Battery Options */
.battery-options {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.battery-option {
    cursor: pointer;
}

.battery-option input {
    display: none;
}

.battery-option .option-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.battery-option input:checked+.option-content {
    border-color: var(--color-accent);
    background: var(--color-accent-light);
}

.battery-option:hover .option-content {
    border-color: var(--border-color-hover);
}

.option-title {
    font-weight: 500;
}

.option-price {
    color: var(--color-accent);
    font-weight: 600;
}

/* Services List */
.services-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.service-checkbox {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    cursor: pointer;
}

.service-checkbox input {
    display: none;
}

.checkbox-mark {
    width: 24px;
    height: 24px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    position: relative;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.service-checkbox input:checked+.checkbox-mark {
    background: var(--color-accent);
    border-color: var(--color-accent);
}

.service-checkbox input:checked+.checkbox-mark::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: var(--font-size-sm);
    font-weight: 700;
}

.checkbox-content {
    flex: 1;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.checkbox-title {
    font-weight: 500;
}

.checkbox-price {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

/* Calculator Navigation */
.calc-navigation {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: auto;
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
}

.calc-steps-indicator {
    display: flex;
    gap: var(--spacing-sm);
}

.step-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--border-color);
    transition: all var(--transition-fast);
}

.step-dot.active {
    background: var(--color-accent);
    width: 24px;
    border-radius: var(--radius-full);
}

/* Calculator Results */
.calculator-results {
    background: var(--color-neutral);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    display: flex;
    flex-direction: column;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.results-header h3 {
    font-size: var(--font-size-xl);
}

.results-badge {
    font-size: var(--font-size-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--color-accent-light);
    color: var(--color-accent);
    border-radius: var(--radius-full);
}

.results-body {
    flex: 1;
}

.result-row {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
}

.result-label {
    color: var(--text-secondary);
}

.result-value {
    font-weight: 600;
}

.result-divider {
    height: 1px;
    background: var(--border-color);
    margin: var(--spacing-md) 0;
}

.result-total .result-label {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
}

.result-total .result-value {
    font-size: var(--font-size-2xl);
    color: var(--color-accent);
}

.results-footer {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

.payback-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-lg);
}

.payback-info strong {
    color: var(--text-primary);
}

/* ===== Partners Section ===== */
.partners {
    padding: var(--spacing-2xl) 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.partners-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--spacing-xl);
}

.partners-label {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.partners-logos {
    display: flex;
    align-items: center;
    gap: var(--spacing-3xl);
}

.partner-logo {
    opacity: 0.6;
    transition: opacity var(--transition-fast);
}

.partner-logo:hover {
    opacity: 1;
}

.partner-name {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-secondary);
}

/* ===== About Section ===== */
.about {
    background: var(--gradient-dark);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.about-content .section-title {
    text-align: left;
    margin-bottom: var(--spacing-lg);
}

.about-text {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.about-feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.about-feature-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-accent);
    border-radius: 50%;
    font-size: var(--font-size-xs);
    font-weight: 700;
}

.about-visual {
    position: relative;
}

.about-image {
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-2xl);
    aspect-ratio: 4/3;
    overflow: hidden;
}

.image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    color: var(--text-muted);
}

.placeholder-icon {
    font-size: 64px;
}

.about-stats-card {
    position: absolute;
    bottom: -24px;
    right: -24px;
    background: var(--color-accent);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    display: flex;
    gap: var(--spacing-xl);
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: white;
}

.stat-number {
    font-size: var(--font-size-2xl);
    font-weight: 800;
}

.stat-text {
    font-size: var(--font-size-sm);
    opacity: 0.8;
}

/* ===== Process Section ===== */
.process {
    background: var(--color-neutral);
}

.process-timeline {
    display: flex;
    justify-content: space-between;
    position: relative;
}

.process-timeline::before {
    content: '';
    position: absolute;
    top: 40px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--border-color);
}

.process-step {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    position: relative;
    padding: 0 var(--spacing-md);
}

.step-number {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-dark);
    border: 2px solid var(--color-accent);
    border-radius: 50%;
    font-size: var(--font-size-xl);
    font-weight: 800;
    color: var(--color-accent);
    margin-bottom: var(--spacing-lg);
    position: relative;
    z-index: 1;
}

.process-step:hover .step-number {
    background: var(--color-accent);
    color: white;
}

.step-content h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
}

.step-content p {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

/* ===== Contact Section ===== */
.contact {
    background: var(--gradient-dark);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

.contact-info .section-title {
    text-align: left;
}

.contact-text {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.contact-item:hover {
    color: var(--color-accent);
}

.contact-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
}

.contact-icon svg {
    width: 24px;
    height: 24px;
}

.contact-social {
    display: flex;
    gap: var(--spacing-md);
}

.social-link {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.social-link:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: white;
}

.social-link svg {
    width: 24px;
    height: 24px;
}

/* Contact Form */
.contact-form-wrapper {
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
}

.contact-form .form-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-xl);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
}

.form-input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    transition: border-color var(--transition-fast);
}

.form-input::placeholder {
    color: var(--text-muted);
}

.form-input:focus {
    border-color: var(--color-accent);
}

textarea.form-input {
    resize: vertical;
    min-height: 100px;
}

.form-disclaimer {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    text-align: center;
    margin-top: var(--spacing-md);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

/* ===== Footer ===== */
.footer {
    background: var(--color-neutral);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
    border-top: 1px solid var(--border-color);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-brand .logo {
    margin-bottom: var(--spacing-md);
}

.footer-desc {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
    max-width: 260px;
}

.footer-links h4 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-links a,
.footer-links span {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
}

.footer-bottom p {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.footer-bottom-links {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-bottom-links a {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

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

/* ===== Modal ===== */
.modal {
    position: fixed;
    inset: 0;
    z-index: var(--z-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
}

.modal-content {
    position: relative;
    width: 100%;
    max-width: 560px;
    max-height: 90vh;
    background: var(--color-neutral);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    overflow-y: auto;
    transform: translateY(20px);
    transition: transform var(--transition-base);
}

.modal.active .modal-content {
    transform: translateY(0);
}

.modal-close {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: var(--font-size-xl);
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: white;
}

.modal-header {
    margin-bottom: var(--spacing-xl);
}

.modal-header h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
}

.modal-header p {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.offer-summary {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.offer-summary h4 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-muted);
}

.summary-details {
    font-size: var(--font-size-sm);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content {
        max-width: 100%;
    }

    .hero-subtitle {
        max-width: 100%;
    }

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

    .hero-stats {
        justify-content: center;
    }

    .hero-visual {
        display: none;
    }

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

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

    .about-content .section-title {
        text-align: center;
    }

    .about-content {
        text-align: center;
    }

    .about-features {
        align-items: center;
    }

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

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

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-glass);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: var(--spacing-lg);
        gap: var(--spacing-md);
        border-bottom: 1px solid var(--border-color);
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-actions {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .hero-title {
        font-size: var(--font-size-4xl);
    }

    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-lg);
    }

    .stat-divider {
        width: 40px;
        height: 1px;
    }

    .process-timeline {
        flex-direction: column;
        gap: var(--spacing-xl);
    }

    .process-timeline::before {
        top: 0;
        bottom: 0;
        left: 40px;
        right: auto;
        width: 2px;
        height: auto;
    }

    .process-step {
        flex-direction: row;
        text-align: left;
        gap: var(--spacing-lg);
    }

    .step-number {
        width: 60px;
        height: 60px;
        flex-shrink: 0;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-brand {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .footer-desc {
        max-width: 100%;
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .object-type-grid {
        grid-template-columns: 1fr;
    }
}