:root {
    --primary: #F97316;         /* orange-500 */
    --primary-hover: #EA580C;   /* orange-600 */
    --primary-light: #FFF7ED;   /* orange-50 */
    --primary-glow: rgba(249, 115, 22, 0.25);
    --secondary: #F59E0B;       /* amber-500 accent */
    --bg-color: #FAFAFA;
    --text-main: #1E293B;
    --text-muted: #64748B;
    --white: #FFFFFF;
    --border-color: #E2E8F0;
    --input-bg: #F8FAFC;
    --success: #10B981;
    --shadow-soft: 0 10px 40px rgba(249, 115, 22, 0.08);
    --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.06);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Plus Jakarta Sans', sans-serif;
}

body {
    background-color: var(--primary-light);
    color: var(--text-main);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    padding: 2rem 1rem;
}

/* ─── Background Blobs ─────────────────────────── */
.bg-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    z-index: -1;
    opacity: 0.6;
    pointer-events: none;
}
.blob-1 {
    width: 400px;
    height: 400px;
    background: #FDBA74;
    top: -100px;
    left: -100px;
}
.blob-2 {
    width: 300px;
    height: 300px;
    background: #FCD34D;
    bottom: 50px;
    right: -50px;
}
.blob-3 {
    width: 200px;
    height: 200px;
    background: #FFEDD5;
    top: 50%;
    left: 20%;
    opacity: 0.4;
}

/* ─── Container ────────────────────────────────── */
.app-container {
    background: var(--white);
    width: 100%;
    max-width: 900px;
    border-radius: 24px;
    box-shadow: var(--shadow-soft);
    padding: 3rem;
    position: relative;
    z-index: 10;
}

/* ─── Stepper Header ──────────────────────────── */
.stepper-header {
    text-align: center;
    margin-bottom: 3rem;
}
.main-title {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 2rem;
    color: var(--text-main);
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.stepper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 650px;
    margin: 0 auto;
}
.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    position: relative;
    z-index: 2;
}
.step-circle {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background-color: var(--border-color);
    color: var(--text-muted);
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: 700;
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
.step-label {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-muted);
    transition: color 0.3s ease;
}
.step.active .step-circle,
.step.completed .step-circle {
    background-color: var(--primary);
    color: var(--white);
    box-shadow: 0 4px 16px var(--primary-glow);
    transform: scale(1.08);
}
.step.active .step-label,
.step.completed .step-label {
    color: var(--primary);
}
.step-line {
    flex-grow: 1;
    height: 2px;
    background-color: var(--border-color);
    margin: 0 10px;
    margin-bottom: 28px;
    border-radius: 2px;
    transition: all 0.4s ease;
}
.step-line.completed {
    background-color: var(--primary);
}

/* ─── Form Steps ─────────────────────────────── */
.form-step {
    display: none;
    animation: fadeIn 0.4s ease-out;
}
.form-step.active {
    display: block;
}
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}

.step-title {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.5rem;
}

/* ─── Form Controls ────────────────────────────── */
.form-group {
    margin-bottom: 1.5rem;
}
.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-main);
}
.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group input[type="date"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.85rem 1.1rem;
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    font-size: 0.95rem;
    color: var(--text-main);
    transition: all 0.25s ease;
    outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    background-color: var(--white);
    box-shadow: 0 0 0 4px var(--primary-glow);
}

.required-star {
    color: #EF4444;
    margin-left: 2px;
}

.input-with-icon {
    position: relative;
    display: flex;
    align-items: center;
}
.input-with-icon i {
    position: absolute;
    left: 1.1rem;
    font-size: 1.25rem;
    color: var(--primary);
    pointer-events: none;
    transition: color 0.25s ease;
    z-index: 2;
}
.input-with-icon input,
.input-with-icon select {
    padding-left: 2.8rem !important;
}
.input-with-icon input:focus ~ i,
.input-with-icon input:focus + i {
    color: var(--primary-hover);
}

/* Date input custom styling */
.form-group input[type="date"] {
    position: relative;
    cursor: pointer;
    font-family: inherit;
    color: var(--text-main);
}
.form-group input[type="date"]::-webkit-calendar-picker-indicator {
    cursor: pointer;
    filter: invert(48%) sepia(85%) saturate(1900%) hue-rotate(352deg) brightness(98%) contrast(97%);
    padding: 4px;
    border-radius: 6px;
    transition: transform 0.2s ease;
}
.form-group input[type="date"]::-webkit-calendar-picker-indicator:hover {
    transform: scale(1.15);
}

/* 2-column grid row */
.form-row-2col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}
@media (max-width: 640px) {
    .form-row-2col {
        grid-template-columns: 1fr;
        gap: 0;
    }
}

/* Gender Selection Cards */
.gender-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-top: 0.4rem;
}
.gender-card {
    position: relative;
    cursor: pointer;
}
.gender-card input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}
.gender-card-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    padding: 0.85rem 1.2rem;
    background: var(--input-bg);
    border: 2px solid var(--border-color);
    border-radius: 14px;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-main);
    transition: all 0.25s ease;
}
.gender-card-content i {
    font-size: 1.3rem;
    color: var(--text-muted);
    transition: color 0.25s ease;
}
.gender-card input[type="radio"]:checked + .gender-card-content {
    border-color: var(--primary);
    background: var(--primary-light);
    color: var(--primary-hover);
    box-shadow: 0 4px 14px var(--primary-glow);
}
.gender-card input[type="radio"]:checked + .gender-card-content i {
    color: var(--primary);
}
.gender-card:hover .gender-card-content {
    border-color: #FDBA74;
    transform: translateY(-1px);
}

/* Class Selection Cards */
.class-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 0.85rem;
    margin-top: 0.4rem;
}
.class-card {
    position: relative;
    cursor: pointer;
}
.class-card input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}
.class-card-body {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    padding: 0.95rem 1.1rem;
    background: var(--input-bg);
    border: 2px solid var(--border-color);
    border-radius: 16px;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}
.class-card-icon {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: #F1F5F9;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    flex-shrink: 0;
    transition: all 0.25s ease;
}
.class-card-info {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    flex-grow: 1;
}
.class-name {
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text-main);
}
.class-badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    background: #E2E8F0;
    padding: 0.2rem 0.6rem;
    border-radius: 6px;
    width: fit-content;
    transition: all 0.25s ease;
}
.class-radio-check {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    color: transparent;
    transition: all 0.25s ease;
    flex-shrink: 0;
}
.class-card input[type="radio"]:checked + .class-card-body {
    border-color: var(--primary);
    background: var(--primary-light);
    box-shadow: 0 4px 16px var(--primary-glow);
    transform: translateY(-2px);
}
.class-card input[type="radio"]:checked + .class-card-body .class-card-icon {
    background: var(--primary);
    color: var(--white);
}
.class-card input[type="radio"]:checked + .class-card-body .class-name {
    color: var(--primary-hover);
}
.class-card input[type="radio"]:checked + .class-card-body .class-badge {
    background: #FFEDD5;
    color: #C2410C;
}
.class-card input[type="radio"]:checked + .class-card-body .class-radio-check {
    border-color: var(--primary);
    background: var(--primary);
    color: var(--white);
}
.class-card:hover .class-card-body {
    border-color: #FDBA74;
    transform: translateY(-2px);
}

.radio-group {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    margin-top: 0.5rem;
}
.radio-option {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 500;
}
.radio-option input[type="radio"] {
    accent-color: var(--primary);
    width: 18px;
    height: 18px;
}

/* ─── Action Buttons ───────────────────────────── */
.action-buttons {
    display: flex;
    margin-top: 2.5rem;
    gap: 1rem;
}
.action-buttons.right {
    justify-content: flex-end;
}
.action-buttons.space-between {
    justify-content: space-between;
}

.btn {
    padding: 0.85rem 1.8rem;
    border-radius: 12px;
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.25s ease;
}
.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-hover));
    color: var(--white);
    box-shadow: 0 4px 14px var(--primary-glow);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--primary-glow);
}
.btn-secondary {
    background-color: #F1F5F9;
    color: var(--text-muted);
}
.btn-secondary:hover {
    background-color: #E2E8F0;
    color: var(--text-main);
}

/* ─── Confirmation Card ────────────────────────── */
.confirm-card {
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}
.confirm-section {
    margin-bottom: 1.25rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px dashed var(--border-color);
}
.confirm-section:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}
.confirm-section-title {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--primary);
    letter-spacing: 0.5px;
    margin-bottom: 0.75rem;
}
.confirm-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}
.confirm-item p {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-bottom: 0.2rem;
}
.confirm-item span {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-main);
}

.checkbox-option {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    cursor: pointer;
    background: #FFF7ED;
    border: 1px solid #FFEDD5;
    padding: 1rem;
    border-radius: 12px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-main);
}
.checkbox-option input[type="checkbox"] {
    accent-color: var(--primary);
    width: 20px;
    height: 20px;
    margin-top: 2px;
}

/* ─── Success Modal ────────────────────────────── */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    animation: fadeIn 0.3s ease;
}
.modal-card {
    background: var(--white);
    border-radius: 24px;
    padding: 2.5rem;
    max-width: 480px;
    width: 90%;
    text-align: center;
    box-shadow: 0 20px 50px rgba(0,0,0,0.2);
}
.modal-icon {
    width: 64px;
    height: 64px;
    background: #DCFCE7;
    color: var(--success);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 1.5rem;
}

@media (max-width: 640px) {
    .app-container {
        padding: 1.5rem;
        border-radius: 20px;
    }
    .stepper {
        gap: 0.2rem;
    }
    .step-label {
        font-size: 0.7rem;
    }
    .step-circle {
        width: 34px;
        height: 34px;
        font-size: 0.85rem;
    }
    .step-line {
        margin: 0 5px 22px;
    }
}

/* ─── Print Stylesheet ───────────────────────── */
@media print {
    body {
        background: #fff !important;
        padding: 0 !important;
    }
    .bg-blob,
    .stepper-header,
    .action-buttons,
    button {
        display: none !important;
    }
    .app-container {
        box-shadow: none !important;
        border: none !important;
        padding: 0 !important;
        width: 100% !important;
        max-width: 100% !important;
    }
}