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

body {
    font-family: 'Hind Siliguri', sans-serif;
    line-height: 1.6;
    color: #1a1a2e;
    background: #f8fafc;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

a {
    text-decoration: none;
    color: inherit;
}

/* Header */
.header {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1e3a5f;
}

.logo span {
    color: #2563eb;
}

.nav {
    display: flex;
    gap: 28px;
}

.nav a {
    font-weight: 500;
    color: #475569;
    transition: color 0.2s;
}

.nav a:hover,
.nav a.active {
    color: #2563eb;
}

.menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #1e3a5f;
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    flex-direction: column;
    background: #fff;
    padding: 15px 20px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.mobile-menu a {
    padding: 12px 0;
    border-bottom: 1px solid #e2e8f0;
    font-weight: 500;
}

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

/* Hero */
.hero {
    background: linear-gradient(135deg, #1e3a5f 0%, #2563eb 100%);
    color: #fff;
    padding: 80px 0;
    text-align: center;
}

.hero h1 {
    font-size: 2.4rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.hero p {
    font-size: 1.15rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto 30px;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.2s;
}

.btn-primary {
    background: #2563eb;
    color: #fff;
}

.btn-primary:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
}

.btn-secondary {
    background: rgba(255,255,255,0.15);
    color: #fff;
    border: 2px solid rgba(255,255,255,0.4);
}

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

/* Features */
.features {
    padding: 70px 0;
}

.section-title {
    text-align: center;
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 40px;
    color: #1e3a5f;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}

.feature-card {
    background: #fff;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.06);
    transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
}

.feature-icon {
    font-size: 2.2rem;
    margin-bottom: 15px;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 10px;
    color: #1e3a5f;
}

.feature-card p {
    color: #64748b;
    margin-bottom: 15px;
    font-size: 0.95rem;
}

.feature-link {
    color: #2563eb;
    font-weight: 600;
    font-size: 0.95rem;
}

.feature-link:hover {
    text-decoration: underline;
}

/* How it works */
.how-it-works {
    background: #fff;
    padding: 70px 0;
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 30px;
    text-align: center;
}

.step-number {
    width: 50px;
    height: 50px;
    background: #2563eb;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    font-weight: 700;
    margin: 0 auto 15px;
}

.step h3 {
    margin-bottom: 8px;
    color: #1e3a5f;
}

.step p {
    color: #64748b;
    font-size: 0.95rem;
}

/* Notice */
.notice {
    padding: 40px 0 70px;
}

.notice-box {
    background: #fef3c7;
    border: 1px solid #f59e0b;
    border-radius: 10px;
    padding: 25px;
    text-align: center;
}

.notice-box h3 {
    color: #92400e;
    margin-bottom: 10px;
}

.notice-box p {
    color: #78350f;
    font-size: 0.95rem;
}

/* Page Hero */
.page-hero {
    background: linear-gradient(135deg, #1e3a5f 0%, #2563eb 100%);
    color: #fff;
    padding: 50px 0;
    text-align: center;
}

.page-hero h1 {
    font-size: 2rem;
    margin-bottom: 8px;
}

.page-hero p {
    opacity: 0.9;
}

/* Content Section */
.content-section {
    padding: 50px 0 70px;
}

.content-card {
    background: #fff;
    border-radius: 12px;
    padding: 30px;
    margin-bottom: 25px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.06);
}

.content-card h2 {
    color: #1e3a5f;
    margin-bottom: 15px;
    font-size: 1.4rem;
}

.content-card > p {
    color: #64748b;
    margin-bottom: 20px;
}

/* Steps List */
.steps-list {
    margin-top: 20px;
}

.step-item {
    display: flex;
    gap: 18px;
    margin-bottom: 25px;
    align-items: flex-start;
}

.step-num {
    background: #2563eb;
    color: #fff;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

.step-item h3 {
    font-size: 1.1rem;
    margin-bottom: 5px;
    color: #1e3a5f;
}

.step-item p {
    color: #64748b;
    font-size: 0.95rem;
}

/* SMS Box */
.sms-box {
    background: #f1f5f9;
    border-radius: 8px;
    padding: 20px;
    margin-top: 15px;
}

.sms-box code {
    background: #1e3a5f;
    color: #fff;
    padding: 6px 12px;
    border-radius: 5px;
    display: inline-block;
    margin: 8px 0;
    font-size: 0.95rem;
}

/* Result Links */
.result-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 15px;
}

.result-btn {
    display: flex;
    flex-direction: column;
    background: #f1f5f9;
    padding: 16px 20px;
    border-radius: 8px;
    transition: background 0.2s;
}

.result-btn:hover {
    background: #e2e8f0;
}

.result-btn span {
    font-weight: 600;
    color: #1e3a5f;
}

.result-btn small {
    color: #64748b;
    font-size: 0.85rem;
}

/* Footer */
.footer {
    background: #1e3a5f;
    color: #fff;
    padding: 30px 0;
    text-align: center;
}

.footer-note {
    font-size: 0.85rem;
    opacity: 0.7;
    margin-top: 8px;
}

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

    .menu-btn {
        display: block;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .hero {
        padding: 60px 0;
    }

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

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