/* ========================================
   CSS Variables & Base Styless
   ======================================== */

:root {
    --primary-blue: #5294e3;
    --primary-blue-dark: #3a7bc8;
    --primary-blue-light: #7eb3f0;
    --light-blue: #e8f4f8;
    --gradient-start: #f0f9ff;
    --gradient-end: #e0f2fe;
    --white: #ffffff;
    --text-dark: #1a202c;
    --text-gray: #4a5568;
    --text-light: #718096;
    --success: #10b981;
    --error: #ef4444;
    --border-radius: 16px;
    --border-radius-lg: 24px;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 24px 64px rgba(82, 148, 227, 0.15);
}

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

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

/* ========================================
   Animated Gradient Background
   ======================================== */

.gradient-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 50%, #f0f9ff 100%);
    background-size: 200% 200%;
    animation: gradientShift 15s ease infinite;
    z-index: -2;
}

@keyframes gradientShift {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

/* ========================================
   Animated Blob Shapes
   ======================================== */

.blob {
    position: fixed;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    z-index: -1;
    animation: float 20s ease-in-out infinite;
}

.blob-1 {
    width: 500px;
    height: 500px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-light) 100%);
    top: -200px;
    left: -200px;
    animation-delay: 0s;
}

.blob-2 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, #7eb3f0 0%, #a5c9f5 100%);
    top: 50%;
    right: -150px;
    animation-delay: 5s;
}

.blob-3 {
    width: 350px;
    height: 350px;
    background: linear-gradient(135deg, var(--primary-blue-light) 0%, #c4dff9 100%);
    bottom: -100px;
    left: 10%;
    animation-delay: 10s;
}

.blob-4 {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, #5294e3 0%, #7eb3f0 100%);
    top: 30%;
    left: 50%;
    animation-delay: 7s;
}

.blob-5 {
    width: 450px;
    height: 450px;
    background: linear-gradient(135deg, #a5c9f5 0%, #d4e8fc 100%);
    bottom: 20%;
    right: 20%;
    animation-delay: 3s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(50px, -50px) scale(1.1);
    }
    66% {
        transform: translate(-30px, 30px) scale(0.9);
    }
}

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

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 60px 24px;
    position: relative;
    z-index: 1;
}

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

.hero {
    text-align: center;
    margin-bottom: 80px;
    animation: fadeInUp 0.8s ease-out;
}

.badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-light) 100%);
    color: var(--white);
    padding: 12px 28px;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 32px;
    box-shadow: var(--shadow-md);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 8px 24px rgba(82, 148, 227, 0.3);
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 12px 32px rgba(82, 148, 227, 0.4);
    }
}

.main-heading {
    font-size: 64px;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 24px;
    color: var(--text-dark);
    letter-spacing: -0.02em;
}

.highlight {
    background: linear-gradient(135deg, #ef4444 0%, #f97316 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

.highlight-blue {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

.subheading {
    font-size: 20px;
    line-height: 1.7;
    color: var(--text-gray);
    max-width: 700px;
    margin: 0 auto;
    font-weight: 500;
}

/* ========================================
   Content Grid
   ======================================== */

.content-section {
    margin-bottom: 80px;
}

.content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.content-left {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

/* ========================================
   Value Cards
   ======================================== */

.value-card {
    background: var(--white);
    padding: 40px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.value-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue) 0%, var(--primary-blue-light) 100%);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.value-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-blue);
}

.value-card:hover::before {
    transform: scaleX(1);
}

.card-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-light) 100%);
    color: var(--white);
    box-shadow: 0 8px 16px rgba(82, 148, 227, 0.3);
}

.teacher-card .card-icon {
    background: linear-gradient(135deg, #10b981 0%, #34d399 100%);
    box-shadow: 0 8px 16px rgba(16, 185, 129, 0.3);
}

.value-card h3 {
    font-size: 28px;
    font-weight: 800;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.card-description {
    font-size: 16px;
    color: var(--text-gray);
    margin-bottom: 24px;
    font-weight: 500;
}

.benefits-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.benefits-list li {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-gray);
    padding: 12px 0;
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 500;
}



/* ========================================
   Signup Card
   ======================================== */

.signup-card {
    background: var(--white);
    padding: 48px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    position: sticky;
    top: 40px;
    border: 2px solid var(--primary-blue);
}

.form-header {
    text-align: center;
    margin-bottom: 32px;
}

.signup-card h3 {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.form-description {
    font-size: 16px;
    color: var(--text-gray);
    font-weight: 500;
}

/* ========================================
   Form Styles
   ======================================== */

.signup-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

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

.form-group label {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-dark);
    letter-spacing: 0.01em;
}

.form-group input,
.form-group select {
    padding: 16px 20px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 16px;
    font-family: inherit;
    transition: all 0.3s ease;
    background: var(--white);
    color: var(--text-dark);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 4px rgba(82, 148, 227, 0.1);
    transform: translateY(-2px);
}

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

/* ========================================
   Submit Button
   ======================================== */

.submit-btn {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
    color: var(--white);
    padding: 18px 32px;
    border: none;
    border-radius: 12px;
    font-size: 18px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 8px 24px rgba(82, 148, 227, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-top: 8px;
    position: relative;
    overflow: hidden;
}

.submit-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

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

.submit-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(82, 148, 227, 0.4);
}

.submit-btn:active {
    transform: translateY(-1px);
}

.btn-icon {
    font-size: 24px;
    transition: transform 0.3s ease;
}

.submit-btn:hover .btn-icon {
    transform: translateX(4px);
}

.submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* ========================================
   Loading Spinner
   ======================================== */

.spinner {
    animation: rotate 1s linear infinite;
    width: 24px;
    height: 24px;
}

.path {
    stroke: var(--white);
    stroke-linecap: round;
    animation: dash 1.5s ease-in-out infinite;
}

@keyframes rotate {
    100% {
        transform: rotate(360deg);
    }
}

@keyframes dash {
    0% {
        stroke-dasharray: 1, 150;
        stroke-dashoffset: 0;
    }
    50% {
        stroke-dasharray: 90, 150;
        stroke-dashoffset: -35;
    }
    100% {
        stroke-dasharray: 90, 150;
        stroke-dashoffset: -124;
    }
}

/* ========================================
   Form Messages
   ======================================== */

.form-message {
    padding: 16px;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    text-align: center;
    display: none;
    animation: slideIn 0.3s ease;
}

.form-message.success {
    background: #d1fae5;
    color: #065f46;
    border: 2px solid #10b981;
    display: block;
}

.form-message.error {
    background: #fee2e2;
    color: #991b1b;
    border: 2px solid #ef4444;
    display: block;
}

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

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

.footer {
    text-align: center;
    padding: 40px 0;
    color: var(--text-light);
    font-size: 14px;
}

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

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@media (max-width: 1024px) {
    .content-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .signup-card {
        position: static;
    }
}

@media (max-width: 768px) {
    .main-heading {
        font-size: 42px;
    }

    .subheading {
        font-size: 18px;
    }

    .value-card {
        padding: 32px;
    }

    .signup-card {
        padding: 32px 24px;
    }

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

@media (max-width: 480px) {
    .container {
        padding: 40px 16px;
    }

    .main-heading {
        font-size: 32px;
    }

    .subheading {
        font-size: 16px;
    }

    .signup-card h3 {
        font-size: 24px;
    }

    .value-card {
        padding: 24px;
    }

    .signup-card {
        padding: 24px 20px;
    }
}