/* ============================================
   IIT Madras School Connect registration
   Standalone page (no styles.css): mirrors the
   look of the Future Assist admissions form,
   in Hash Future School branding.
   ============================================ */

:root {
    --primary: #FF4B4B;
    --primary-dark: #e03e3e;
    --primary-soft: #FFF1F1;
    --primary-border: #FFD5D5;
    --ink: #0F172A;
    --text: #1E293B;
    --muted: #475569;
    --light: #64748B;
    --line: #E2E8F0;
    --surface: #FFFFFF;
    --bg: #F8FAFC;
    --blue: #1565D8;
    --radius-lg: 18px;
    --radius-md: 12px;
    --radius-full: 999px;
    --shadow: 0 10px 30px -18px rgba(15, 23, 42, 0.35);
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

/* Several elements below set their own display (flex/inline-flex), which would
   otherwise beat the `hidden` attribute the step logic relies on. */
[hidden] {
    display: none !important;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--primary);
}

input,
select,
textarea,
button {
    font-family: inherit;
    font-size: 1rem;
}

.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    background: var(--ink);
    color: #fff;
    padding: 10px 16px;
    border-radius: 0 0 8px 0;
    z-index: 100;
}

.skip-link:focus {
    left: 0;
}

/* ---------- header ---------- */
.scr-header {
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    position: sticky;
    top: 0;
    z-index: 20;
}

.scr-header-inner {
    max-width: 900px;
    margin: 0 auto;
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 18px;
}

.scr-logo img {
    display: block;
    height: 38px;
    width: auto;
}

.scr-home-link {
    color: var(--muted);
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
}

.scr-home-link:hover {
    color: var(--primary);
}

.scr-header-link {
    margin-left: auto;
    color: var(--blue);
    font-size: 0.9rem;
    font-weight: 700;
    text-decoration: none;
}

.scr-header-link:hover {
    text-decoration: underline;
}

/* ---------- intro ---------- */
main {
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 20px 64px;
}

.scr-intro {
    text-align: center;
    margin-bottom: 30px;
}

.scr-badge {
    display: inline-block;
    background: var(--primary-soft);
    border: 1px solid var(--primary-border);
    color: var(--primary-dark);
    font-size: 0.78rem;
    font-weight: 700;
    padding: 6px 16px;
    border-radius: var(--radius-full);
    margin-bottom: 16px;
}

.scr-intro h1 {
    margin: 0 0 12px;
    font-size: clamp(1.75rem, 4vw, 2.35rem);
    font-weight: 800;
    letter-spacing: -0.01em;
    color: var(--ink);
}

.scr-intro-sub {
    margin: 0 auto;
    max-width: 640px;
    color: var(--muted);
    font-size: 1rem;
}

.scr-intro-points {
    list-style: none;
    margin: 24px 0 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
}

.scr-intro-points li {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-full);
    padding: 8px 16px 8px 10px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--muted);
}

.scr-intro-points span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 800;
}

/* ---------- stepper ---------- */
.scr-stepper {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 24px;
}

.scr-step {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    background: var(--surface);
    border: 1px solid var(--line);
    color: var(--light);
    border-radius: var(--radius-full);
    padding: 8px 18px 8px 10px;
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.scr-step-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: #EEF2F7;
    color: var(--muted);
    font-size: 0.8rem;
    font-weight: 800;
}

.scr-step.is-active {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

.scr-step.is-active .scr-step-num {
    background: rgba(255, 255, 255, 0.22);
    color: #fff;
}

.scr-step.is-done {
    border-color: var(--primary-border);
    background: var(--primary-soft);
    color: var(--primary-dark);
}

.scr-step.is-done .scr-step-num {
    background: var(--primary);
    color: #fff;
}

.scr-step-arrow {
    color: var(--line);
    flex: 0 0 auto;
}

/* ---------- cards & fields ---------- */
.scr-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: 28px;
    box-shadow: var(--shadow);
}

.scr-card h2 {
    margin: 0 0 6px;
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--ink);
}

.scr-card-sub {
    margin: 0 0 24px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--line);
    color: var(--light);
    font-size: 0.92rem;
}

.scr-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.scr-span-2 {
    grid-column: 1 / -1;
}

.scr-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.scr-field label {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text);
}

.scr-field label span[aria-hidden='true'] {
    color: var(--primary);
}

.scr-optional {
    color: var(--light);
    font-weight: 500;
}

.scr-field small {
    color: var(--light);
    font-size: 0.78rem;
}

.scr-field input,
.scr-field select,
.scr-field textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    background: #fff;
    color: var(--text);
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.scr-field textarea {
    resize: vertical;
    min-height: 90px;
}

.scr-field input:focus,
.scr-field select:focus,
.scr-field textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(255, 75, 75, 0.15);
}

.scr-field input.scr-invalid,
.scr-field select.scr-invalid,
.scr-field textarea.scr-invalid {
    border-color: var(--primary);
    background: #FFF7F7;
}

.scr-subhead {
    margin-top: 8px;
    padding-top: 16px;
    border-top: 1px dashed var(--line);
}

.scr-subhead h3 {
    margin: 0;
    font-size: 1rem;
    font-weight: 800;
    color: var(--ink);
}

.scr-subhead h3 span {
    color: var(--light);
    font-weight: 500;
    font-size: 0.85rem;
}

/* ---------- interest checkboxes ---------- */
.scr-check-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: 10px;
    margin-top: 4px;
}

.scr-check {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--muted);
    cursor: pointer;
}

.scr-check input {
    width: 18px;
    height: 18px;
    margin: 2px 0 0;
    accent-color: var(--primary);
    flex: 0 0 auto;
}

.scr-check-block {
    align-items: flex-start;
    background: var(--bg);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    padding: 14px 16px;
    font-size: 0.88rem;
    line-height: 1.6;
}

.scr-consent {
    display: grid;
    gap: 12px;
    margin-top: 24px;
}

/* ---------- review ---------- */
.scr-review {
    margin-top: 24px;
    padding: 22px;
    border-radius: var(--radius-md);
    background: var(--bg);
    border: 1px solid var(--line);
}

.scr-review h3 {
    margin: 0 0 14px;
    font-size: 1rem;
    font-weight: 800;
    color: var(--ink);
}

.scr-review dl {
    margin: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 12px 20px;
}

.scr-review dt {
    font-size: 0.72rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--light);
    font-weight: 700;
}

.scr-review dd {
    margin: 2px 0 0;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text);
    word-break: break-word;
}

.scr-review-note {
    margin: 18px 0 0;
    padding-top: 16px;
    border-top: 1px dashed var(--line);
    font-size: 0.82rem;
    color: var(--light);
}

/* ---------- actions ---------- */
.scr-actions {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    margin-top: 24px;
}

.scr-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 13px 26px;
    border-radius: var(--radius-full);
    border: 1px solid transparent;
    font-weight: 700;
    font-size: 0.95rem;
    text-decoration: none;
    cursor: pointer;
    transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.scr-btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 10px 24px -12px rgba(255, 75, 75, 0.8);
    margin-left: auto;
}

.scr-btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

.scr-btn-ghost {
    background: #fff;
    border-color: var(--line);
    color: var(--muted);
}

.scr-btn-ghost:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.scr-btn[disabled] {
    opacity: 0.65;
    cursor: progress;
    transform: none;
}

.scr-actions-note {
    margin: 12px 0 0;
    text-align: center;
    font-size: 0.82rem;
    color: var(--light);
}

.scr-error {
    margin-top: 20px;
    padding: 14px 18px;
    border-radius: var(--radius-md);
    background: var(--primary-soft);
    border: 1px solid var(--primary-border);
    color: var(--primary-dark);
    font-size: 0.9rem;
    font-weight: 600;
}

.scr-hp {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

/* ---------- success ---------- */
.scr-success {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: 36px 30px;
    box-shadow: var(--shadow);
    text-align: center;
}

.scr-success-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 58px;
    height: 58px;
    border-radius: 50%;
    background: #ECFDF5;
    border: 1px solid #A7F3D0;
    color: #059669;
    font-size: 1.7rem;
    font-weight: 800;
    margin-bottom: 18px;
}

.scr-success h2 {
    margin: 0 0 10px;
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--ink);
}

.scr-success > p {
    margin: 0 auto;
    max-width: 560px;
    color: var(--muted);
}

.scr-ref {
    margin: 26px auto;
    max-width: 420px;
    background: var(--primary-soft);
    border: 1px solid var(--primary-border);
    border-radius: var(--radius-md);
    padding: 18px 20px;
}

.scr-ref span {
    display: block;
    font-size: 0.72rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--primary-dark);
    font-weight: 700;
}

.scr-ref strong {
    display: block;
    margin-top: 6px;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-dark);
    letter-spacing: 0.02em;
}

.scr-success h3 {
    margin: 0 0 14px;
    font-size: 1.05rem;
    font-weight: 800;
    color: var(--ink);
}

.scr-next-steps {
    text-align: left;
    max-width: 620px;
    margin: 0 auto;
    padding-left: 20px;
    color: var(--muted);
}

.scr-next-steps li {
    margin-bottom: 10px;
}

.scr-success-note {
    margin: 20px auto 0;
    max-width: 620px;
    font-size: 0.88rem;
    color: var(--light);
}

.scr-success-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin-top: 26px;
}

.scr-success-actions .scr-btn-primary {
    margin-left: 0;
}

/* ---------- footer ---------- */
.scr-footer {
    border-top: 1px solid var(--line);
    background: var(--surface);
}

.scr-footer-inner {
    max-width: 900px;
    margin: 0 auto;
    padding: 24px 20px 40px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.scr-footer p {
    margin: 0;
    font-size: 0.82rem;
    color: var(--light);
}

.scr-footer nav {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.scr-footer nav a {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--muted);
    text-decoration: none;
}

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

/* ---------- responsive ---------- */
@media (max-width: 720px) {
    .scr-header-link {
        display: none;
    }

    .scr-card {
        padding: 22px 18px;
    }

    .scr-grid {
        grid-template-columns: minmax(0, 1fr);
    }

    .scr-step-label {
        display: none;
    }

    .scr-step {
        padding: 8px 12px;
    }

    .scr-step.is-active .scr-step-label {
        display: inline;
    }

    .scr-actions {
        flex-direction: column-reverse;
    }

    .scr-btn {
        width: 100%;
        margin-left: 0;
    }
}