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

body {
    font-family: Arial, Helvetica, sans-serif;
    background: #f7fbfc;
    color: #1f2937;
    line-height: 1.6;
}

a {
    text-decoration: none;
}

.container {
    width: min(1180px, 92%);
    margin: 0 auto;
}

.site-header {
    background: #ffffff;
    border-bottom: 1px solid #e5e7eb;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 0;
    gap: 20px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: #11b7c6;
}

.nav {
    display: flex;
    align-items: center;
    gap: 18px;
    flex-wrap: wrap;
}

.nav a {
    color: #1f2937;
    font-weight: 600;
}

.btn-primary {
    background: #11b7c6;
    color: #fff !important;
    padding: 10px 18px;
    border-radius: 10px;
    transition: 0.2s;
}

.btn-primary:hover {
    background: #0f9cab;
}

.btn-outline {
    border: 1px solid #11b7c6;
    color: #11b7c6 !important;
    padding: 10px 18px;
    border-radius: 10px;
}

.hero {
    padding: 80px 0 60px;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 40px;
    align-items: center;
}

.hero-text h1 {
    font-size: 3rem;
    line-height: 1.1;
    margin-bottom: 18px;
    color: #0f172a;
}

.hero-text p {
    font-size: 1.08rem;
    color: #4b5563;
    margin-bottom: 28px;
    max-width: 650px;
}

.hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.hero-card {
    background: linear-gradient(135deg, #11b7c6, #7ce7ef);
    color: white;
    border-radius: 24px;
    padding: 30px;
    min-height: 300px;
    box-shadow: 0 18px 40px rgba(17, 183, 198, 0.18);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.hero-card h3 {
    font-size: 1.8rem;
    margin-bottom: 14px;
}

.section {
    padding: 70px 0;
}

.section-title {
    font-size: 2rem;
    margin-bottom: 14px;
    color: #0f172a;
}

.section-subtitle {
    color: #6b7280;
    margin-bottom: 35px;
    max-width: 720px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
}

.feature-card {
    background: #fff;
    border-radius: 18px;
    padding: 24px;
    border: 1px solid #e8eef0;
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.05);
}

.feature-card h3 {
    margin-bottom: 10px;
    color: #0f172a;
}

.feature-card p {
    color: #6b7280;
}

.site-footer {
    background: #ffffff;
    border-top: 1px solid #e5e7eb;
    margin-top: 60px;
}

.site-footer .container {
    padding: 24px 0;
    text-align: center;
    color: #6b7280;
}


.auth-card {
    max-width: 520px;
    margin: 0 auto;
    background: #fff;
    border-radius: 20px;
    padding: 32px;
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
    border: 1px solid #e8eef0;
}

.auth-card h1 {
    font-size: 2rem;
    margin-bottom: 8px;
    color: #0f172a;
}

.auth-subtitle {
    color: #6b7280;
    margin-bottom: 24px;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-weight: 600;
    color: #1f2937;
}

.form-group input {
    height: 48px;
    border: 1px solid #dbe3e8;
    border-radius: 12px;
    padding: 0 14px;
    font-size: 1rem;
    outline: none;
}

.form-group input:focus {
    border-color: #11b7c6;
    box-shadow: 0 0 0 3px rgba(17, 183, 198, 0.12);
}

.auth-btn {
    border: none;
    cursor: pointer;
    font-size: 1rem;
    margin-top: 6px;
}

.auth-links {
    margin-top: 14px;
}

.auth-links a,
.auth-bottom-text a {
    color: #11b7c6;
    font-weight: 600;
}

.auth-bottom-text {
    margin-top: 18px;
    color: #6b7280;
}

.alert {
    padding: 14px 16px;
    border-radius: 12px;
    margin-bottom: 18px;
    font-weight: 500;
}

.alert-error {
    background: #fef2f2;
    color: #b91c1c;
    border: 1px solid #fecaca;
}

.alert-success {
    background: #ecfdf5;
    color: #047857;
    border: 1px solid #a7f3d0;
}

.auth-section {
    min-height: calc(100vh - 180px);
    display: flex;
    align-items: center;
    padding: 70px 0;
    background: linear-gradient(135deg, #f7fbfc 0%, #eafbfc 100%);
}

.auth-card {
    width: 100%;
    max-width: 460px;
    margin: 0 auto;
    background: #ffffff;
    border: 1px solid #e5f3f5;
    border-radius: 24px;
    padding: 34px;
    box-shadow: 0 18px 45px rgba(15, 23, 42, 0.08);
}

.auth-card h1 {
    font-size: 2.2rem;
    margin-bottom: 8px;
    color: #0f172a;
}

.auth-subtitle {
    color: #64748b;
    margin-bottom: 26px;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.form-group label {
    display: block;
    font-weight: 700;
    margin-bottom: 8px;
    color: #1f2937;
}

.form-group input {
    width: 100%;
    height: 52px;
    border: 1px solid #dbeafe;
    border-radius: 14px;
    padding: 0 16px;
    font-size: 1rem;
    background: #f8fdfe;
    outline: none;
    transition: 0.2s;
}

.form-group input:focus {
    border-color: #11b7c6;
    background: #ffffff;
    box-shadow: 0 0 0 4px rgba(17, 183, 198, 0.12);
}

.auth-btn {
    width: 100%;
    height: 52px;
    border: none;
    border-radius: 14px;
    font-size: 1rem;
    font-weight: 800;
    cursor: pointer;
}

.auth-links,
.auth-bottom-text {
    text-align: center;
    margin-top: 18px;
}

.auth-links a,
.auth-bottom-text a {
    color: #0f9cab;
    font-weight: 800;
}
    
@media (max-width: 900px) {
    .hero-grid {
        grid-template-columns: 1fr;
    }

    .hero-text h1 {
        font-size: 2.2rem;
    }

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

    .header-inner {
        flex-direction: column;
        align-items: flex-start;
    }

    .nav {
        width: 100%;
    }
}