/* ===== CSS Reset & Base Styles ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2F5DA8;
    --primary-dark: #1e3a6f;
    --primary-light: #2BB7A3;
    --secondary-color: #7ED957;
    --accent-color: #3FCF8E;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --border-color: #e5e7eb;
    --gradient: linear-gradient(135deg, #7ED957 0%, #2BB7A3 100%);
    --gradient-alt: linear-gradient(135deg, #3FCF8E 0%, #2F5DA8 100%);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.no-wrap {
    white-space: nowrap;
}

/* ===== Navigation ===== */
.navbar {
    background: var(--bg-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 0.5rem 0;
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
    text-decoration: none;
}

.logo-img {
    height: 100px;
    width: auto;
}

.logo-icon {
    font-size: 1.8rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

.nav-links .btn-primary {
    color: white;
}

.nav-links .btn-primary:hover {
    color: white;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    transition: all 0.3s ease;
}

/* ===== Buttons ===== */
.btn-primary {
    background: var(--gradient-alt);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    display: inline-block;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(126, 217, 87, 0.3);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(126, 217, 87, 0.4);
}

.btn-primary:active {
    transform: translateY(0);
}

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

.btn-full {
    width: 100%;
}

.btn-white {
    background: white;
    color: var(--primary-color);
    box-shadow: 0 4px 15px rgba(47, 93, 168, 0.2);
}

.btn-white:hover {
    background: #f9fafb;
    box-shadow: 0 6px 25px rgba(47, 93, 168, 0.3);
}

/* ===== Hero Section ===== */
.hero {
    padding: 6rem 0;
    background: var(--bg-white);
    min-height: 85vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-bg-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 0;
}

.hero-bg-video video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.15;
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero-grid {
    display: flex;
    justify-content: center;
    align-items: center;
}

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

.hero-title {
    font-size: 4.2rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
    letter-spacing: -0.03em;
    text-align: center;
}

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

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.7;
    max-width: 100%;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.hero-positioning {
    font-size: 1rem;
    color: var(--text-dark);
    font-weight: 500;
    margin-bottom: 2.5rem;
}

.hero-cta {
    margin-bottom: 5rem;
}

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

.dashboard-image {
    width: 100%;
    height: auto;
    border-radius: 16px;
    box-shadow: 0 25px 70px rgba(0, 0, 0, 0.18);
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.dashboard-image:hover {
    transform: translateY(-6px);
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.22);
}

/* ===== Trusted By Section ===== */
.trusted-by {
    padding: 3rem 0 0 0;
    margin-top: 2rem;
}

.trusted-by-label {
    text-align: center;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 2px;
    color: var(--text-light);
    margin-bottom: 2rem;
}

.trusted-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 3rem;
    flex-wrap: wrap;
}

.trust-logo {
    height: 90px;
    display: flex;
    align-items: center;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

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

.trust-logo img {
    max-height: 90px;
    max-width: 240px;
    width: auto;
    height: auto;
    object-fit: contain;
    filter: grayscale(0%);
    transition: filter 0.3s ease;
}

.trust-logo:hover img {
    filter: grayscale(0%);
}

/* ===== Problem Section ===== */
.problem {
    padding: 6rem 0;
    background: linear-gradient(135deg, #1e3a6f 0%, #2F5DA8 50%, #2BB7A3 100%);
    position: relative;
}

.problem-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: #7ED957;
    margin-bottom: 2rem;
    text-align: center;
    letter-spacing: -0.03em;
}

.problem-intro {
    font-size: 1.6rem;
    font-weight: 400;
    color: #ffffff;
    text-align: center;
    max-width: 700px;
    margin: 0 auto 3.5rem;
    line-height: 1.7;
}

.problem-intro strong {
    font-weight: 700;
    color: #7ED957;
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 2rem;
}

.problem-column {
    background: var(--bg-white);
    padding: 2.25rem 2rem;
    border-radius: 6px;
    text-align: left;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: all 0.25s ease;
    position: relative;
}

.problem-column:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
    border-color: rgba(126, 217, 87, 0.4);
}

.problem-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: #7ED957;
    opacity: 0.65;
    margin-bottom: 0.5rem;
    line-height: 1;
    transition: opacity 0.3s ease;
}

.problem-column:hover .problem-number {
    opacity: 0.85;
}

.problem-heading {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 0.75rem;
    line-height: 1.3;
    padding-top: 1rem;
    border-top: 3px solid var(--secondary-color);
}

.problem-text {
    font-size: 1rem;
    color: var(--text-light);
    line-height: 1.65;
}

.problem-transition {
    font-size: 1.15rem;
    font-weight: 600;
    color: #ffffff;
    text-align: center;
    margin-top: 0.5rem;
}

/* ===== Features Section ===== */
.features {
    padding: 5rem 0;
    background: linear-gradient(135deg, #f9fafb 0%, #f0f9f4 100%);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    letter-spacing: -0.03em;
    line-height: 1.2;
}

.section-header h2 .no-wrap {
    white-space: nowrap;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-alt);
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: 0;
}

.feature-card:hover::before {
    opacity: 0.05;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.15);
    border-color: var(--primary-color);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
    transition: transform 0.3s ease;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.75rem;
    color: var(--text-dark);
    position: relative;
    z-index: 1;
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.6;
    position: relative;
    z-index: 1;
}

/* ===== How Voltsave Works ===== */
.how-subtitle {
    font-size: 1.4rem !important;
    font-weight: 600 !important;
    color: var(--text-dark) !important;
    margin-top: 1rem !important;
}

.how-it-works-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 4rem;
    margin-top: 4rem;
    position: relative;
}

.how-it-works-grid::before {
    content: '';
    position: absolute;
    top: 60px;
    left: 16.66%;
    right: 16.66%;
    height: 3px;
    background: linear-gradient(to right, var(--secondary-color) 0%, var(--primary-color) 50%, var(--primary-light) 100%);
    opacity: 0.2;
    z-index: 0;
}

.work-step {
    background: var(--bg-white);
    padding: 0;
    border-radius: 16px;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.work-step::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    transition: height 0.3s ease;
}

.work-step:nth-child(1)::before {
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
}

.work-step:nth-child(2)::before {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
}

.work-step:nth-child(3)::before {
    background: linear-gradient(135deg, var(--primary-light), var(--accent-color));
}

.work-step:hover {
    transform: translateY(-12px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.work-step:hover::before {
    height: 8px;
}

.step-number,
.step-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    font-weight: 800;
    color: white;
    margin: -40px auto 0;
    position: relative;
    z-index: 2;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.work-step:nth-child(1) .step-number,
.work-step:nth-child(1) .step-icon {
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
}

.work-step:nth-child(2) .step-number,
.work-step:nth-child(2) .step-icon {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
}

.work-step:nth-child(3) .step-number,
.work-step:nth-child(3) .step-icon {
    background: linear-gradient(135deg, var(--primary-light), var(--accent-color));
}

.step-content {
    padding: 2.5rem 2rem 2.5rem;
}

.step-title {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--accent-color);
    margin-bottom: 1rem;
    line-height: 1.2;
    text-align: center;
}

.step-tagline {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 1.25rem;
    line-height: 1.4;
    text-align: center;
}

.step-description {
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.7;
    text-align: center;
}

/* ===== Why Voltsave Section ===== */
.why-voltsave {
    padding: 6rem 0;
    background: linear-gradient(135deg, #1a1f36 0%, #2F5DA8 50%, #1e3a6f 100%);
    position: relative;
}

.why-voltsave .section-header h2 {
    color: #ffffff;
}

.why-voltsave .section-header p {
    color: rgba(255, 255, 255, 0.85);
    font-weight: 500;
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.why-pillar {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    padding: 2.5rem 2rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
    position: relative;
}

.why-pillar:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--secondary-color);
    transform: translateY(-5px);
}

.pillar-number {
    font-size: 1rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 1.25rem;
    letter-spacing: 0.1em;
}

.pillar-title {
    font-size: 1.15rem;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.pillar-description {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.6;
}

/* ===== Case Study Section ===== */
.case-study {
    padding: 5rem 0;
    background: linear-gradient(135deg, #f9fafb 0%, #ffffff 100%);
}

.case-study-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-top: 3rem;
    align-items: start;
}

.case-study-video,
.case-study-visual {
    position: sticky;
    top: 100px;
}

.case-study-visual {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.analysis-dashboard {
    width: 100%;
    height: auto;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    margin-bottom: 1rem;
}

.visual-caption {
    font-size: 0.85rem;
    color: var(--text-light);
    text-align: center;
    font-style: italic;
    margin: 0;
}

.video-placeholder {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    background: var(--text-dark);
}

.video-placeholder video {
    width: 100%;
    height: auto;
    display: block;
}

.play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    cursor: pointer;
    transition: transform 0.3s ease;
    z-index: 10;
}

.play-button:hover {
    transform: translate(-50%, -50%) scale(1.1);
}

.case-study-details {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--shadow-md);
}

.case-study-header h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.case-study-meta {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    padding: 1.5rem;
    background: var(--bg-light);
    border-radius: 8px;
    margin-bottom: 1.5rem;
}

.meta-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.meta-label {
    font-size: 0.85rem;
    color: var(--text-light);
    font-weight: 500;
}

.meta-value {
    font-size: 1rem;
    color: var(--text-dark);
    font-weight: 600;
}

.solution-info {
    margin-bottom: 2rem;
}

.solution-badge {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    padding: 0.75rem 1.25rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    font-size: 1rem;
}

.solution-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--bg-light);
    border-radius: 8px;
}

.detail-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 12px;
    flex-shrink: 0;
}

.detail-icon svg {
    color: white;
    width: 24px;
    height: 24px;
}

.detail-label {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-bottom: 0.25rem;
}

.detail-value {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-dark);
}

.results-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.result-card {
    background: linear-gradient(135deg, rgba(47, 93, 168, 0.05) 0%, rgba(43, 183, 163, 0.05) 100%);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    border: 2px solid var(--border-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.result-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.result-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 16px;
    box-shadow: var(--shadow-md);
}

.result-icon svg {
    color: white;
    width: 32px;
    height: 32px;
}

.result-number {
    font-size: 2.75rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.result-label {
    font-size: 0.95rem;
    color: var(--text-light);
    font-weight: 500;
}

.chart-info {
    background: var(--bg-light);
    padding: 1.5rem;
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
}

.chart-info p {
    margin-bottom: 0.75rem;
    color: var(--text-dark);
    line-height: 1.6;
}

.chart-info p:last-child {
    margin-bottom: 0;
}

.transparency-note {
    margin-top: 2rem;
    padding: 1rem 1.25rem;
    background: #fef3c7;
    border-left: 4px solid #f59e0b;
    border-radius: 6px;
}

.transparency-note p {
    font-size: 0.85rem;
    color: #92400e;
    margin: 0;
    line-height: 1.6;
    font-weight: 500;
}

/* ===== Benefits Section ===== */
.benefits {
    padding: 5rem 0;
    background: var(--bg-light);
}

.benefits-dark {
    background: linear-gradient(135deg, #1f2937 0%, #111827 100%);
    color: white;
}

.benefits-dark .section-header h2 {
    color: white;
}

.benefits-dark .benefit-item h3 {
    color: white;
}

.benefits-dark .benefit-item p {
    color: rgba(255, 255, 255, 0.8);
}

.benefits-dark .benefit-number {
    color: rgba(255, 255, 255, 0.2);
}

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

.benefit-item {
    position: relative;
    transition: transform 0.3s ease;
}

.benefit-item:hover {
    transform: translateY(-5px);
}

.benefit-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-light);
    opacity: 0.3;
    margin-bottom: 1rem;
}

.benefit-item h3 {
    font-size: 1.3rem;
    margin-bottom: 0.75rem;
    color: var(--text-dark);
}

.benefit-item p {
    color: var(--text-light);
}

/* ===== Demo Section ===== */
.demo-section {
    padding: 5rem 0;
    background: var(--bg-white);
}

.demo-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.demo-text h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.demo-text p {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

.demo-benefits {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.demo-benefits li {
    color: var(--text-dark);
    font-size: 1.05rem;
}

.demo-form-container {
    background: var(--bg-white);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-color);
}

.demo-form h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

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

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-dark);
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-disclaimer {
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-light);
    margin-top: 1rem;
}

.form-disclaimer a {
    color: var(--primary-color);
    text-decoration: none;
}

/* Form Messages */
.form-message {
    padding: 1rem 1.5rem;
    border-radius: 8px;
    margin-top: 1.5rem;
    text-align: center;
    font-weight: 500;
    animation: slideDown 0.3s ease;
}

.form-message-success {
    background: linear-gradient(135deg, rgba(126, 217, 87, 0.1), rgba(63, 207, 142, 0.1));
    border: 2px solid var(--secondary-color);
    color: #2d5f1e;
}

.form-message-error {
    background: rgba(239, 68, 68, 0.1);
    border: 2px solid #ef4444;
    color: #991b1b;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== Footer ===== */
.footer {
    background: var(--text-dark);
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.footer-section h4 {
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: white;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 0.5rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-white);
        padding: 1rem;
        box-shadow: var(--shadow-md);
    }

    .hero-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

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

    .hero-subtitle {
        font-size: 1.1rem;
        max-width: 100%;
    }

    .hero-positioning {
        font-size: 0.95rem;
    }

    .hero-visual {
        order: -1;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .trusted-logos {
        gap: 2rem;
    }

    .trust-logo {
        height: 50px;
    }

    .trust-logo img {
        max-height: 50px;
        max-width: 140px;
    }

    .problem-title {
        font-size: 1.75rem;
        text-align: center;
        margin-bottom: 1.5rem;
    }

    .problem-intro {
        font-size: 1.25rem;
        margin-bottom: 2.5rem;
        max-width: 100%;
    }

    .problem-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        margin-bottom: 1.5rem;
    }

    .problem-column {
        padding: 1.75rem 1.5rem;
        text-align: left;
    }

    .problem-number {
        font-size: 2rem;
    }

    .problem-heading {
        font-size: 1.15rem;
        font-weight: 800;
    }

    .problem-transition {
        font-size: 1rem;
    }

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

    .how-it-works-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .how-it-works-grid::before {
        display: none;
    }

    .work-step {
        margin-bottom: 1rem;
    }

    .step-number,
    .step-icon {
        width: 70px;
        height: 70px;
        font-size: 2rem;
        margin: -35px auto 0;
    }

    .step-content {
        padding: 2rem 1.5rem 2rem;
    }

    .step-title {
        font-size: 1.5rem;
    }

    .step-tagline {
        font-size: 1rem;
    }

    .step-description {
        font-size: 0.9rem;
    }

    .how-subtitle {
        font-size: 1.2rem !important;
    }

    .why-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .why-pillar {
        padding: 2rem 1.5rem;
    }

    .pillar-title {
        font-size: 1.1rem;
    }

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

    .case-study-video,
    .case-study-visual {
        position: relative;
        top: 0;
    }

    .case-study-meta {
        grid-template-columns: 1fr;
    }

    .solution-details {
        grid-template-columns: 1fr;
    }

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

    .result-number {
        font-size: 2.5rem;
    }

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

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

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

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

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .section-header h2 {
        font-size: 2rem;
    }

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

/* ===== Animations ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content,
.feature-card,
.benefit-item {
    animation: fadeIn 0.6s ease-out;
}

/* AOS Animations */
[data-aos] {
    opacity: 0;
    transition-property: opacity, transform;
    transition-duration: 0.8s;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

[data-aos].aos-animate {
    opacity: 1;
}

[data-aos="fade-up"] {
    transform: translateY(30px);
}

[data-aos="fade-up"].aos-animate {
    transform: translateY(0);
}

[data-aos="fade-left"] {
    transform: translateX(30px);
}

[data-aos="fade-left"].aos-animate {
    transform: translateX(0);
}

[data-aos="fade-right"] {
    transform: translateX(-30px);
}

[data-aos="fade-right"].aos-animate {
    transform: translateX(0);
}

/* Stagger delays for sequential animations */
[data-aos][data-aos-delay="100"] {
    transition-delay: 0.1s;
}

[data-aos][data-aos-delay="200"] {
    transition-delay: 0.2s;
}

[data-aos][data-aos-delay="300"] {
    transition-delay: 0.3s;
}

[data-aos][data-aos-delay="400"] {
    transition-delay: 0.4s;
}

[data-aos][data-aos-delay="500"] {
    transition-delay: 0.5s;
}