/* ============================================================
   ITERIA VIA — Registration Page Styles
   Premium wizard design with navy/cyan theme
   ============================================================ */

/* ===== CSS VARIABLES (shared with landing) ===== */
:root {
    --primary: #3b82f6;
    --primary-dark: #2563eb;
    --primary-light: #dbeafe;
    --accent: #06b6d4;
    --accent-dark: #0891b2;

    --navy-900: #0a1628;
    --navy-800: #0f1d32;
    --navy-700: #162844;
    --navy-600: #1e3a5f;

    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;

    --success: #10b981;
    --success-light: #d1fae5;
    --warning: #f59e0b;
    --danger: #ef4444;
    --danger-light: #fee2e2;

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.05);
    --shadow-glow: 0 0 40px rgba(59,130,246,0.15);

    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font);
    color: var(--gray-800);
    line-height: 1.6;
    background: var(--navy-900);
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }

/* ===== ANIMATED BACKGROUND ===== */
.reg-bg {
    position: fixed;
    inset: 0;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
}

.reg-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.3;
}

.reg-orb-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(59,130,246,0.4), transparent 70%);
    top: -15%;
    right: -10%;
    animation: regFloat 20s ease-in-out infinite;
}

.reg-orb-2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(6,182,212,0.3), transparent 70%);
    bottom: -15%;
    left: -10%;
    animation: regFloat 25s ease-in-out infinite reverse;
}

.reg-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 20%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 20%, transparent 70%);
}

@keyframes regFloat {
    0%, 100% { transform: translate(0, 0); }
    25% { transform: translate(30px, -30px); }
    50% { transform: translate(-20px, 20px); }
    75% { transform: translate(15px, 15px); }
}

/* ===== NAVBAR ===== */
.reg-nav {
    position: relative;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.reg-nav-back {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.88rem;
    font-weight: 500;
    color: rgba(255,255,255,0.5);
    transition: color 0.2s;
}

.reg-nav-back:hover {
    color: rgba(255,255,255,0.85);
}

.reg-nav-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.05rem;
    color: #fff;
    letter-spacing: -0.5px;
}

.reg-nav-logo strong {
    font-weight: 800;
}

/* ===== MAIN ===== */
.reg-main {
    position: relative;
    z-index: 5;
    max-width: 680px;
    margin: 0 auto;
    padding: 20px 24px 60px;
}

/* ===== PROGRESS BAR ===== */
.reg-progress {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    margin-bottom: 32px;
}

.reg-progress-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    position: relative;
}

.reg-progress-step span {
    font-size: 0.72rem;
    font-weight: 600;
    color: rgba(255,255,255,0.25);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: color 0.3s;
}

.reg-progress-step.active span,
.reg-progress-step.completed span {
    color: rgba(255,255,255,0.7);
}

.reg-step-circle {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 700;
    background: rgba(255,255,255,0.08);
    color: rgba(255,255,255,0.3);
    border: 2px solid rgba(255,255,255,0.1);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.reg-progress-step.active .reg-step-circle {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #fff;
    border-color: transparent;
    box-shadow: 0 0 20px rgba(59,130,246,0.4);
}

.reg-progress-step.completed .reg-step-circle {
    background: var(--success);
    color: #fff;
    border-color: transparent;
}

.reg-progress-line {
    width: 60px;
    height: 2px;
    background: rgba(255,255,255,0.1);
    margin: 0 8px;
    margin-bottom: 22px;
    border-radius: 2px;
    overflow: hidden;
}

.reg-progress-fill {
    width: 0;
    height: 100%;
    background: linear-gradient(90deg, var(--success), var(--accent));
    border-radius: 2px;
    transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== WIZARD CARD ===== */
.reg-card {
    background: rgba(255,255,255,0.97);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl), 0 0 80px rgba(0,0,0,0.2);
    padding: 40px 36px;
    position: relative;
    overflow: hidden;
}

.reg-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
}

/* ===== STEPS ===== */
.reg-step {
    display: none;
    animation: stepFadeIn 0.4s ease-out;
}

.reg-step.active {
    display: block;
}

@keyframes stepFadeIn {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Step going back */
.reg-step.slide-back {
    animation: stepFadeInBack 0.4s ease-out;
}

@keyframes stepFadeInBack {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ===== STEP HEADER ===== */
.reg-step-header {
    text-align: center;
    margin-bottom: 32px;
}

.reg-step-icon {
    font-size: 2.8rem;
    margin-bottom: 12px;
}

.reg-step-header h1 {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--gray-900);
    letter-spacing: -0.5px;
    margin-bottom: 6px;
}

.reg-step-header p {
    font-size: 0.95rem;
    color: var(--gray-500);
}

/* ===== FORM FIELDS ===== */
.reg-form-row {
    margin-bottom: 18px;
}

.reg-form-2col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.reg-field label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 6px;
}

.reg-field input {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid var(--gray-200);
    border-radius: var(--radius-md);
    font-family: var(--font);
    font-size: 0.95rem;
    color: var(--gray-900);
    background: #fff;
    transition: all 0.2s ease;
    outline: none;
}

.reg-field input::placeholder {
    color: var(--gray-400);
}

.reg-field input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59,130,246,0.12);
}

.reg-field input.valid {
    border-color: var(--success);
}

.reg-field input.invalid {
    border-color: var(--danger);
    box-shadow: 0 0 0 3px rgba(239,68,68,0.08);
}

.reg-field-error {
    font-size: 0.78rem;
    color: var(--danger);
    margin-top: 4px;
    min-height: 18px;
    transition: opacity 0.2s;
}

/* ===== PASSWORD ===== */
.reg-password-wrapper {
    position: relative;
}

.reg-password-wrapper input {
    padding-right: 44px;
}

.reg-toggle-pass {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    color: var(--gray-400);
    padding: 4px;
    transition: color 0.2s;
}

.reg-toggle-pass:hover {
    color: var(--gray-600);
}

/* Password strength */
.reg-password-strength {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 6px;
}

.reg-strength-bar {
    flex: 1;
    height: 3px;
    background: var(--gray-200);
    border-radius: 3px;
    overflow: hidden;
}

.reg-strength-fill {
    height: 100%;
    width: 0;
    border-radius: 3px;
    transition: all 0.3s;
}

.reg-strength-fill.weak { width: 33%; background: var(--danger); }
.reg-strength-fill.medium { width: 66%; background: var(--warning); }
.reg-strength-fill.strong { width: 100%; background: var(--success); }

.reg-password-strength span {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--gray-400);
    min-width: 50px;
}

/* ===== VERIFICATION CODE ===== */
.reg-code-inputs {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin: 24px 0 16px;
}

.reg-code-digit {
    width: 52px;
    height: 60px;
    text-align: center;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--gray-900);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    font-family: var(--font);
    outline: none;
    transition: all 0.2s;
    caret-color: var(--primary);
}

.reg-code-digit:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59,130,246,0.15);
}

.reg-code-digit.filled {
    border-color: var(--success);
    background: var(--success-light);
}

.reg-code-error {
    text-align: center;
}

.reg-dev-code {
    text-align: center;
    background: #fffbeb;
    border: 1px solid #fbbf24;
    border-radius: var(--radius-md);
    padding: 12px 16px;
    margin: 16px 0;
    font-size: 0.88rem;
    color: var(--gray-700);
}

.reg-dev-code strong {
    display: block;
    font-size: 1.5rem;
    letter-spacing: 6px;
    color: var(--gray-900);
    margin-top: 4px;
}

.reg-resend {
    text-align: center;
    font-size: 0.88rem;
    color: var(--gray-500);
    margin-top: 20px;
}

.reg-resend-btn {
    background: none;
    border: none;
    color: var(--primary);
    font-weight: 600;
    cursor: pointer;
    font-family: var(--font);
    font-size: 0.88rem;
    transition: color 0.2s;
}

.reg-resend-btn:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.reg-resend-btn:disabled {
    color: var(--gray-400);
    cursor: not-allowed;
}

.reg-resend-timer {
    color: var(--gray-400);
    font-size: 0.82rem;
}

/* ===== GIRO GRID ===== */
.reg-giro-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 28px;
}

.reg-giro-card {
    background: #fff;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    padding: 20px 14px;
    text-align: center;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    user-select: none;
}

.reg-giro-card:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.reg-giro-card.selected {
    border-color: var(--primary);
    background: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(59,130,246,0.15), var(--shadow-md);
}

.reg-giro-emoji {
    font-size: 2rem;
    margin-bottom: 8px;
}

.reg-giro-name {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--gray-800);
}

.reg-giro-desc {
    font-size: 0.72rem;
    color: var(--gray-500);
    margin-top: 2px;
    line-height: 1.3;
}

/* ===== PLANS GRID ===== */
.reg-plans-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 28px;
}

.reg-plan-card {
    background: #fff;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 24px 18px;
    text-align: center;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    user-select: none;
}

.reg-plan-card:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
}

.reg-plan-card.selected {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59,130,246,0.15), var(--shadow-lg);
}

.reg-plan-card.destacado {
    border-color: var(--primary);
}

.reg-plan-badge {
    position: absolute;
    top: -11px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #fff;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 3px 14px;
    border-radius: var(--radius-full);
    white-space: nowrap;
}

.reg-plan-name {
    font-size: 1.05rem;
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: 4px;
    margin-top: 4px;
}

.reg-plan-price {
    font-size: 2rem;
    font-weight: 900;
    color: var(--gray-900);
    letter-spacing: -1px;
    line-height: 1.1;
}

.reg-plan-price span {
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--gray-500);
}

.reg-plan-desc {
    font-size: 0.78rem;
    color: var(--gray-500);
    margin: 8px 0 12px;
    line-height: 1.4;
}

.reg-plan-features {
    list-style: none;
    padding: 0;
    text-align: left;
    margin: 0;
}

.reg-plan-features li {
    font-size: 0.78rem;
    color: var(--gray-600);
    padding: 4px 0;
    display: flex;
    align-items: center;
    gap: 6px;
}

.reg-plan-features li::before {
    content: '✓';
    color: var(--success);
    font-weight: 800;
    font-size: 0.82rem;
}

.reg-plan-trial {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--gray-100);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent-dark);
}

/* ===== BUTTONS ===== */
.reg-actions {
    margin-top: 28px;
}

.reg-actions-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.reg-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font);
    font-weight: 700;
    font-size: 0.95rem;
    padding: 14px 28px;
    border-radius: var(--radius-full);
    border: none;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    white-space: nowrap;
}

.reg-btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #fff;
    box-shadow: 0 4px 15px rgba(59,130,246,0.3);
    width: 100%;
    justify-content: center;
}

.reg-btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59,130,246,0.4);
}

.reg-btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.reg-btn-ghost {
    background: transparent;
    color: var(--gray-500);
    padding: 14px 20px;
}

.reg-btn-ghost:hover {
    color: var(--gray-700);
    background: var(--gray-100);
    border-radius: var(--radius-full);
}

.reg-btn-lg {
    padding: 16px 36px;
    font-size: 1.05rem;
}

.reg-actions-between .reg-btn-primary {
    width: auto;
}

/* Loading state */
.reg-btn.loading {
    pointer-events: none;
    position: relative;
}

.reg-btn.loading span {
    opacity: 0;
}

.reg-btn.loading svg {
    opacity: 0;
}

.reg-btn.loading::after {
    content: '';
    position: absolute;
    width: 22px;
    height: 22px;
    border: 2.5px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: btnSpin 0.6s linear infinite;
}

@keyframes btnSpin {
    to { transform: rotate(360deg); }
}

/* ===== LOADING SPINNER ===== */
.reg-loading {
    text-align: center;
    padding: 32px;
    color: var(--gray-400);
    font-size: 0.88rem;
}

.reg-spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--gray-200);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: btnSpin 0.7s linear infinite;
    margin: 0 auto 12px;
}

/* ===== LOGIN LINK ===== */
.reg-login-link {
    text-align: center;
    margin-top: 20px;
    font-size: 0.88rem;
    color: var(--gray-500);
}

.reg-login-link a {
    color: var(--primary);
    font-weight: 600;
    transition: color 0.2s;
}

.reg-login-link a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* ===== SUCCESS SCREEN ===== */
.reg-success {
    text-align: center;
    padding: 20px 0;
}

.reg-success-icon {
    font-size: 4rem;
    margin-bottom: 16px;
    animation: successBounce 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes successBounce {
    0% { transform: scale(0); }
    50% { transform: scale(1.15); }
    100% { transform: scale(1); }
}

.reg-success h1 {
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--gray-900);
    margin-bottom: 8px;
}

.reg-success p {
    font-size: 1rem;
    color: var(--gray-500);
    max-width: 400px;
    margin: 0 auto 24px;
    line-height: 1.6;
}

.reg-success-details {
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    padding: 20px 24px;
    margin: 24px 0 28px;
    text-align: left;
}

.reg-success-detail-item {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    font-size: 0.88rem;
    border-bottom: 1px solid var(--gray-200);
}

.reg-success-detail-item:last-child {
    border-bottom: none;
}

.reg-success-detail-item span:first-child {
    color: var(--gray-500);
}

.reg-success-detail-item span:last-child {
    font-weight: 700;
    color: var(--gray-900);
}

.reg-success .reg-btn {
    width: auto;
    display: inline-flex;
}

/* ===== FOOTER ===== */
.reg-footer {
    position: relative;
    z-index: 5;
    text-align: center;
    padding: 24px;
}

.reg-footer p {
    font-size: 0.78rem;
    color: rgba(255,255,255,0.2);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .reg-card {
        padding: 28px 20px;
        border-radius: var(--radius-lg);
    }

    .reg-step-header h1 {
        font-size: 1.3rem;
    }

    .reg-form-2col {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .reg-giro-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .reg-plans-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .reg-code-digit {
        width: 44px;
        height: 52px;
        font-size: 1.2rem;
    }

    .reg-progress-line {
        width: 36px;
    }

    .reg-step-circle {
        width: 32px;
        height: 32px;
        font-size: 0.78rem;
    }

    .reg-progress-step span {
        font-size: 0.65rem;
    }

    .reg-actions-between {
        flex-direction: column-reverse;
        gap: 12px;
    }

    .reg-actions-between .reg-btn-primary,
    .reg-actions-between .reg-btn-ghost {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .reg-main {
        padding: 12px 16px 40px;
    }

    .reg-nav {
        padding: 12px 16px;
    }

    .reg-card {
        padding: 24px 16px;
    }

    .reg-code-inputs {
        gap: 6px;
    }

    .reg-code-digit {
        width: 40px;
        height: 48px;
        font-size: 1.1rem;
    }

    .reg-giro-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }

    .reg-giro-card {
        padding: 14px 10px;
    }

    .reg-giro-emoji {
        font-size: 1.6rem;
    }
}