/* ============================================================
   PROLERUS — INDIVIDUAL REGISTER  (Premium Dark Edition)
   ============================================================ */

:root {
    --bg:             #06090f;
    --surface:        #0a1020;
    --elevated:       #101828;
    --card-bg:        rgba(10, 16, 32, 0.92);
    --border:         rgba(148, 163, 184, 0.12);
    --border-hover:   rgba(148, 163, 184, 0.25);
    --border-accent:  rgba(20, 184, 166, 0.45);
    --accent:         #14b8a6;
    --accent-hover:   #0ea594;
    --accent-bright:  #2dd4bf;
    --accent-glow:    rgba(20, 184, 166, 0.18);
    --accent-dim:     rgba(20, 184, 166, 0.08);
    --text-primary:   #f0f4f8;
    --text-secondary: #94a3b8;
    --text-muted:     #64748b;
    --error:          #f43f5e;
    --success:        #10b981;
    --warning:        #f59e0b;
    --gold:           #d4a843;
    --radius-sm:      10px;
    --radius-md:      14px;
    --radius-lg:      20px;
    --radius-xl:      28px;
    --transition:     0.22s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Reset ───────────────────────────────────────────────── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

/* ── Body ────────────────────────────────────────────────── */
body {
    font-family: "Fustat", "Montserrat", system-ui, sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background:
        radial-gradient(ellipse 80% 60% at 10% 70%, rgba(20, 184, 166, 0.06) 0%, transparent 60%),
        radial-gradient(ellipse 60% 50% at 90% 15%, rgba(56, 189, 248, 0.05) 0%, transparent 55%),
        linear-gradient(170deg, #04060d 0%, #080f1e 55%, #06090f 100%);
    background-attachment: fixed;
    color: var(--text-primary);
}

/* ── Ambient Orbs ────────────────────────────────────────── */
.bg-orb {
    position: fixed;
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
    filter: blur(90px);
    opacity: 0.35;
}
.bg-orb--teal {
    width: 520px;
    height: 520px;
    bottom: -120px;
    left: -100px;
    background: radial-gradient(circle, rgba(20, 184, 166, 0.4) 0%, transparent 70%);
    animation: orbDrift 18s ease-in-out infinite alternate;
}
.bg-orb--blue {
    width: 400px;
    height: 400px;
    top: -80px;
    right: -80px;
    background: radial-gradient(circle, rgba(56, 189, 248, 0.3) 0%, transparent 70%);
    animation: orbDrift 22s ease-in-out infinite alternate-reverse;
}
@keyframes orbDrift {
    from { transform: translate(0, 0) scale(1); }
    to   { transform: translate(30px, 20px) scale(1.06); }
}

/* ── Header ──────────────────────────────────────────────── */
header {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
    background: rgba(6, 9, 15, 0.75);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

header h2 {
    font-family: "Unbounded", sans-serif;
    font-weight: 600;
    font-size: 1.2rem;
    letter-spacing: -0.3px;
    color: var(--text-primary);
    margin: 0;
}
header h2 a, header a, header h5 a {
    color: inherit;
    text-decoration: none;
    font-family: "Unbounded", sans-serif;
}
header h5 { margin: 0; font-weight: 400; }

.discover-more {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 20px;
    border: 1px solid var(--border-accent);
    color: var(--accent-bright);
    font-family: "Fustat", sans-serif;
    font-size: 0.85rem;
    font-weight: 500;
    text-decoration: none;
    transition: all var(--transition);
}
.discover-more:hover {
    background: var(--accent-dim);
    border-color: var(--accent);
    box-shadow: 0 0 18px var(--accent-glow);
    transform: translateY(-1px);
}

/* ── Card ────────────────────────────────────────────────── */
.card {
    position: relative;
    z-index: 1;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    box-shadow:
        0 0 0 1px rgba(255,255,255,0.03) inset,
        0 2px 80px rgba(0, 0, 0, 0.65),
        0 0 60px rgba(20, 184, 166, 0.04);
    padding: 52px 48px 44px;
    width: 92%;
    max-width: 780px;
    margin: 56px auto 48px;
    animation: cardIn 0.55s cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes cardIn {
    from { opacity: 0; transform: translateY(28px) scale(0.97); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* ── Card Hero ───────────────────────────────────────────── */
.card-hero {
    text-align: center;
    margin-bottom: 40px;
}

.card-hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 5px 14px;
    border-radius: 30px;
    background: rgba(20, 184, 166, 0.1);
    border: 1px solid rgba(20, 184, 166, 0.25);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.8px;
    text-transform: uppercase;
    color: var(--accent-bright);
    font-family: "Fustat", sans-serif;
    margin-bottom: 20px;
}

.badge-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent-bright);
    box-shadow: 0 0 8px var(--accent-bright);
    animation: pulseDot 2.4s ease-in-out infinite;
}
@keyframes pulseDot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.55; transform: scale(0.7); }
}

.card-hero h2 {
    font-family: "Unbounded", sans-serif;
    font-weight: 700;
    font-size: 2rem;
    letter-spacing: -0.7px;
    line-height: 1.15;
    margin-bottom: 12px;
    background: linear-gradient(135deg, #f0f4f8 0%, var(--accent-bright) 80%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.card-hero__sub {
    color: var(--text-secondary);
    font-size: 1rem;
    font-family: "Fustat", sans-serif;
    font-weight: 400;
}

/* ── Plan Featured ───────────────────────────────────────── */
.plan-section {
    margin-bottom: 36px;
}

.plan-featured {
    position: relative;
    background: linear-gradient(145deg, rgba(20, 184, 166, 0.07) 0%, rgba(8, 15, 32, 0.5) 100%);
    border: 1px solid var(--border-accent);
    border-radius: var(--radius-lg);
    padding: 32px 32px 28px;
    box-shadow: 0 0 40px rgba(20, 184, 166, 0.06), 0 8px 32px rgba(0,0,0,0.4);
}

.plan-featured__label {
    position: absolute;
    top: -12px;
    left: 28px;
    background: linear-gradient(90deg, var(--accent) 0%, var(--accent-bright) 100%);
    color: #02201c;
    font-family: "Unbounded", sans-serif;
    font-size: 0.65rem;
    font-weight: 800;
    letter-spacing: 1.2px;
    text-transform: uppercase;
    padding: 4px 12px;
    border-radius: 20px;
}

.plan-featured__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 24px;
}

.plan-featured__name {
    font-family: "Unbounded", sans-serif;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.plan-featured__price {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 1px;
}
.price-was {
    font-family: "Fustat", sans-serif;
    font-size: 0.9rem;
    color: var(--text-muted);
    text-decoration: line-through;
    text-decoration-color: rgba(148, 163, 184, 0.45);
}
.price-now {
    display: flex;
    align-items: baseline;
    gap: 2px;
}
.price-amount {
    font-family: "Unbounded", sans-serif;
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--accent-bright);
    line-height: 1;
}
.price-period {
    font-size: 1rem;
    color: var(--text-secondary);
    font-family: "Fustat", sans-serif;
    margin-left: 2px;
}

.plan-featured__perks {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 10px 24px;
}
.plan-featured__perks li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-family: "Fustat", sans-serif;
}
.plan-featured__perks li i {
    color: var(--accent);
    font-size: 0.75rem;
    width: 14px;
    flex-shrink: 0;
}

/* ── Discount Section ────────────────────────────────────── */
.discount-section {
    margin-bottom: 32px;
}

.discount-section__label {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-family: "Fustat", sans-serif;
    font-weight: 500;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.discount-input-row {
    display: flex;
    gap: 10px;
}

.discount-input-row input[type="text"] {
    flex: 1;
    padding: 12px 16px;
    background: rgba(6, 9, 15, 0.6);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-family: "Fustat", sans-serif;
    color: var(--text-primary);
    transition: all var(--transition);
    letter-spacing: 1px;
}
.discount-input-row input[type="text"]:focus {
    outline: none;
    border-color: var(--border-accent);
    box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.08);
    background: rgba(6, 9, 15, 0.85);
}
.discount-input-row input::placeholder { color: var(--text-muted); letter-spacing: 0; }

.btn-apply {
    padding: 12px 22px;
    background: transparent;
    border: 1px solid var(--border-accent);
    border-radius: var(--radius-sm);
    color: var(--accent-bright);
    font-family: "Fustat", sans-serif;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}
.btn-apply:hover:not(:disabled) {
    background: var(--accent-dim);
    border-color: var(--accent);
    box-shadow: 0 0 16px var(--accent-glow);
}
.btn-apply:disabled { opacity: 0.5; cursor: not-allowed; }

.discount-status {
    margin-top: 8px;
    font-size: 0.8375rem;
    font-family: "Fustat", sans-serif;
    min-height: 18px;
}
.discount-status--error   { color: var(--error); }
.discount-status--success { color: var(--success); }

/* ── Trial Banner ────────────────────────────────────────── */
.trial-banner {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    margin-top: 14px;
    padding: 16px 18px;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, rgba(6, 9, 15, 0.4) 100%);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: var(--radius-md);
    animation: bannerIn 0.3s cubic-bezier(0.22, 1, 0.36, 1) both;
}
@keyframes bannerIn {
    from { opacity: 0; transform: translateY(-6px); }
    to   { opacity: 1; transform: translateY(0); }
}

.trial-banner__icon {
    color: var(--success);
    font-size: 1.2rem;
    flex-shrink: 0;
    margin-top: 1px;
}

.trial-banner__text {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.trial-banner__text strong {
    font-size: 0.9rem;
    color: var(--success);
    font-family: "Fustat", sans-serif;
    font-weight: 700;
}
.trial-banner__text span {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    font-family: "Fustat", sans-serif;
    line-height: 1.5;
}

.btn-remove-discount {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 2px 6px;
    border-radius: 4px;
    transition: color var(--transition);
    flex-shrink: 0;
}
.btn-remove-discount:hover { color: var(--text-secondary); }

/* ── Age Restriction ─────────────────────────────────────── */
.age-restriction {
    background: rgba(245, 158, 11, 0.10);
    border: 1px solid rgba(245, 158, 11, 0.38);
    box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.05);
    border-radius: var(--radius-md);
    padding: 22px 24px;
    margin-bottom: 32px;
}

.age-restriction-header {
    color: #fbbf24;
    font-size: 0.875rem;
    font-weight: 700;
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: "Fustat", sans-serif;
}
.age-restriction-header i { font-size: 1rem; }

.age-checkbox-container {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 12px 0;
    padding: 12px 16px;
    background: rgba(245, 158, 11, 0.08);
    border-radius: var(--radius-sm);
    border: 1px solid rgba(245, 158, 11, 0.32);
    cursor: pointer;
    transition: border-color var(--transition), background var(--transition);
}
.age-checkbox-container:hover { border-color: rgba(245, 158, 11, 0.55); background: rgba(245, 158, 11, 0.12); }

/* ── Premium Checkbox (age + terms) ─────────────────────── */
.premium-checkbox {
    display: flex;
    align-items: center;
    gap: 14px;
    cursor: pointer;
    user-select: none;
    margin: 0;
}

.premium-checkbox input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 1px;
    height: 1px;
    pointer-events: none;
}

.premium-checkbox__box {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    border-radius: 7px;
    border: 2px solid rgba(148, 163, 184, 0.50);
    background: rgba(6, 9, 15, 0.55);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.25);
}

.premium-checkbox:hover .premium-checkbox__box {
    border-color: rgba(20, 184, 166, 0.45);
    background: rgba(20, 184, 166, 0.05);
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.2), 0 0 0 3px rgba(20, 184, 166, 0.07);
}

.premium-checkbox input[type="checkbox"]:checked + .premium-checkbox__box {
    background: linear-gradient(135deg, rgba(20, 184, 166, 0.22) 0%, rgba(20, 184, 166, 0.08) 100%);
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.13), 0 0 18px rgba(20, 184, 166, 0.2), inset 0 1px 2px rgba(20, 184, 166, 0.1);
}

.premium-checkbox__check {
    color: var(--accent-bright);
    font-size: 0.7rem;
    opacity: 0;
    transform: scale(0.4) rotate(-10deg);
    transition: opacity 0.16s ease, transform 0.22s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.premium-checkbox input[type="checkbox"]:checked + .premium-checkbox__box .premium-checkbox__check {
    opacity: 1;
    transform: scale(1) rotate(0deg);
}

.premium-checkbox__text {
    color: var(--text-primary);
    font-weight: 600;
    font-family: "Fustat", sans-serif;
    font-size: 0.875rem;
    line-height: 1.5;
}

.premium-checkbox input[type="checkbox"]:focus-visible + .premium-checkbox__box {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
}

.age-restriction-note {
    color: var(--text-secondary);
    font-size: 0.8125rem;
    line-height: 1.6;
    margin-top: 10px;
    padding: 10px 14px;
    background: rgba(6, 9, 15, 0.35);
    border-radius: var(--radius-sm);
    border-left: 3px solid rgba(245, 158, 11, 0.45);
    font-family: "Fustat", sans-serif;
}

/* ── Terms Checkbox Container ────────────────────────────── */
.terms-checkbox-container {
    padding: 14px 16px;
    background: rgba(20, 184, 166, 0.07);
    border: 1px solid rgba(20, 184, 166, 0.28);
    box-shadow: 0 0 0 4px rgba(20, 184, 166, 0.04);
    border-radius: var(--radius-sm);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.terms-checkbox-container:hover {
    border-color: rgba(20, 184, 166, 0.50);
    background: rgba(20, 184, 166, 0.11);
    box-shadow: 0 0 0 4px rgba(20, 184, 166, 0.07);
}

.terms-checkbox-container .premium-checkbox__text {
    font-size: 0.9rem;
    color: var(--text-primary);
    font-weight: 600;
}

.terms-checkbox-container a {
    color: var(--accent-bright);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition);
}

.terms-checkbox-container a:hover {
    color: var(--accent);
    text-decoration: underline;
}

/* ── Form ────────────────────────────────────────────────── */
form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.form-field {
    display: flex;
    flex-direction: column;
    gap: 7px;
}

label {
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.775rem;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    font-family: "Fustat", sans-serif;
}
.label-optional {
    font-weight: 400;
    text-transform: none;
    letter-spacing: 0;
    color: var(--text-muted);
    font-size: 0.7rem;
}

input[type="text"],
input[type="email"],
input[type="password"],
select {
    width: 100%;
    padding: 12px 15px;
    background: rgba(6, 9, 15, 0.6);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.9375rem;
    font-family: "Fustat", sans-serif;
    color: var(--text-primary);
    transition: all var(--transition);
}
input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
select:focus {
    outline: none;
    border-color: var(--border-accent);
    background: rgba(6, 9, 15, 0.85);
    box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.09);
}
input::placeholder { color: var(--text-muted); }

select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%2364748b' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 12px center;
    background-repeat: no-repeat;
    background-size: 16px;
    padding-right: 40px;
}
select option { background: var(--elevated); color: var(--text-primary); }

/* ── Password wrapper ────────────────────────────────────── */
.password-wrapper {
    position: relative;
}
.password-wrapper input { padding-right: 46px; }
.password-toggle {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: color var(--transition);
    font-size: 0.875rem;
}
.password-toggle:hover { color: var(--text-secondary); }

/* ── Referral ────────────────────────────────────────────── */
.referral-field { margin-bottom: 0; }
.referral-input-wrap {
    position: relative;
    display: flex;
    align-items: center;
}
.referral-input-wrap input { letter-spacing: 2px; font-size: 0.9rem; }
.referral-status {
    position: absolute;
    right: 14px;
    font-size: 0.775rem;
    font-family: "Fustat", sans-serif;
    white-space: nowrap;
}
.referral-valid   { color: var(--success); }
.referral-invalid { color: var(--error); }

/* ── Selected Plan Display ───────────────────────────────── */
.selected-plan-display {
    background: rgba(20, 184, 166, 0.07);
    border: 1px solid var(--border-accent);
    border-radius: var(--radius-sm);
    padding: 13px 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    color: var(--accent-bright);
    font-weight: 600;
    font-family: "Fustat", sans-serif;
    font-size: 0.875rem;
}
.selected-plan-display i { color: var(--accent); }

/* ── Payment Section ─────────────────────────────────────── */
#payment-section {
    background: rgba(6, 9, 15, 0.55);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 22px 20px;
}

.payment-section-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 18px;
}
.payment-section-header i { color: var(--accent); font-size: 0.9rem; }
.payment-section-header h3 {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-family: "Unbounded", sans-serif;
    font-weight: 600;
    flex: 1;
}
.secure-badge {
    font-size: 0.7rem;
    color: var(--text-muted);
    font-family: "Fustat", sans-serif;
    border: 1px solid var(--border);
    padding: 3px 8px;
    border-radius: 4px;
    letter-spacing: 0.2px;
}

#payment-element { margin-bottom: 10px; }
#payment-message { color: #fda4af; font-size: 0.875rem; margin-top: 10px; }
.hidden { display: none; }

/* ── Error / Success Message ─────────────────────────────── */
.error-message {
    color: var(--error);
    font-size: 0.875rem;
    margin: 4px 0;
    min-height: 20px;
    font-family: "Fustat", sans-serif;
    text-align: center;
}

/* ── Submit Button ───────────────────────────────────────── */
.submit {
    width: 100%;
    padding: 15px 20px;
    background: linear-gradient(135deg, var(--accent) 0%, #0ea594 100%);
    color: #021e1a;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.9375rem;
    font-weight: 700;
    font-family: "Fustat", sans-serif;
    cursor: pointer;
    transition: all var(--transition);
    margin-top: 6px;
    box-shadow: 0 0 28px rgba(20, 184, 166, 0.22), 0 4px 16px rgba(0,0,0,0.35);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    letter-spacing: 0.2px;
}
.submit:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 0 44px rgba(20, 184, 166, 0.38), 0 8px 24px rgba(0,0,0,0.45);
    background: linear-gradient(135deg, var(--accent-bright) 0%, var(--accent) 100%);
}
.submit:active:not(:disabled) { transform: translateY(0); }
.submit:disabled {
    opacity: 0.45;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
    background: var(--elevated);
    color: var(--text-muted);
}
.submit:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

/* ── Card Footer ─────────────────────────────────────────── */
.card-footer {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    margin-top: 20px;
}

.back {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    font-family: "Fustat", sans-serif;
    cursor: pointer;
    transition: all var(--transition);
    padding: 10px 20px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.back:hover {
    border-color: var(--border-hover);
    color: var(--text-primary);
    background: rgba(255,255,255,0.03);
}
.back i { font-size: 0.8rem; }

.switch-version a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.8rem;
    font-family: "Fustat", sans-serif;
    transition: color var(--transition);
}
.switch-version a:hover { color: var(--text-secondary); }

/* ── Spinner ─────────────────────────────────────────────── */
@keyframes spin { to { transform: rotate(360deg); } }
.fa-spinner { animation: spin 0.8s linear infinite; }

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 700px) {
    header { padding: 16px 22px; }
    .card  { padding: 36px 24px 32px; margin-top: 36px; max-width: 96%; }
    .form-grid { grid-template-columns: 1fr; }
    .card-hero h2 { font-size: 1.6rem; }
    .price-amount { font-size: 2rem; }
    .plan-featured__perks { grid-template-columns: 1fr; }
    .discount-input-row { flex-direction: column; }
    .btn-apply { width: 100%; }
}

@media (max-width: 480px) {
    header h5 { display: none; }
    .card { padding: 28px 18px 24px; border-radius: var(--radius-lg); }
    .card-hero h2 { font-size: 1.35rem; }
    input[type="text"], input[type="email"], input[type="password"], select {
        padding: 11px 13px;
        font-size: 0.9rem;
    }
}