@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

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

:root {
    --primary: #0ea5e9;
    --primary-d: #0284c7;
    --primary-dd: #0369a1;
    --secondary: #6366f1;
    --accent: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --dark: #050d1a;
    --dark2: #0a1628;
    --surface: #0f1f35;
    --surface2: #162640;
    --border: rgba(14, 165, 233, 0.15);
    --border2: rgba(255, 255, 255, 0.06);
    --text-1: #f0f9ff;
    --text-2: #7dd3fc;
    --text-3: #475569;
    --glow: rgba(14, 165, 233, 0.25);
    --radius-sm: 8px;
    --radius: 14px;
    --radius-lg: 20px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background: var(--dark);
    color: var(--text-1);
    min-height: 100vh;
    line-height: 1.6;
}

.topbar {
    background: var(--dark2);
    border-bottom: 1px solid var(--border);
    padding: 10px 0;
    text-align: center;
    font-size: 13px;
    color: var(--text-2);
    position: sticky;
    top: 0;
    z-index: 200;
    backdrop-filter: blur(10px);
}

.topbar strong {
    color: var(--primary);
}

.hero {
    background: linear-gradient(160deg, var(--dark2) 0%, var(--dark) 50%, rgba(6, 28, 60, 0.8) 100%);
    padding: 60px 20px 40px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 400px;
    background: radial-gradient(ellipse, rgba(14, 165, 233, 0.12) 0%, transparent 70%);
    pointer-events: none;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(14, 165, 233, 0.1);
    border: 1px solid rgba(14, 165, 233, 0.3);
    border-radius: 30px;
    padding: 6px 18px;
    font-size: 12px;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: .08em;
    margin-bottom: 20px;
}

.hero h1 {
    font-size: clamp(32px, 6vw, 62px);
    font-weight: 900;
    line-height: 1.1;
    background: linear-gradient(135deg, #fff 0%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
}

.hero p {
    font-size: 17px;
    color: var(--text-2);
    max-width: 500px;
    margin: 0 auto 40px;
}

.planes-banner {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
}

.banner-img-container {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: 0 0 60px rgba(14, 165, 233, 0.15), 0 30px 60px rgba(0, 0, 0, 0.5);
}

.banner-img-container img,
.banner-placeholder {
    width: 100%;
    display: block;
}

.banner-placeholder {
    background: var(--surface);
    padding: 50px 30px;
    text-align: center;
    border-radius: var(--radius-lg);
}

.planes-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    padding: 30px;
}

.plan-card {
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 22px;
    text-align: center;
    transition: transform .25s, box-shadow .25s, border-color .25s;
    position: relative;
    overflow: hidden;
}

.plan-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.plan-card.estrella {
    border-color: rgba(14, 165, 233, 0.4);
}

.plan-card.estrella::before {
    content: 'MÁS ELEGIDO';
    position: absolute;
    top: 12px;
    right: -25px;
    background: var(--primary);
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    padding: 4px 30px;
    transform: rotate(35deg);
    letter-spacing: .05em;
}

.plan-speed {
    font-size: 50px;
    font-weight: 900;
    line-height: 1;
    margin-bottom: 4px;
}

.plan-speed.c300 {
    color: #a78bfa;
}

.plan-speed.c600 {
    color: var(--primary);
}

.plan-speed.c1gb {
    color: var(--accent);
}

.plan-unit {
    font-size: 16px;
    font-weight: 600;
    opacity: .7;
}

.plan-divider {
    height: 1px;
    background: var(--border);
    margin: 16px 0;
}

.plan-row {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    color: var(--text-2);
    margin: 4px 0;
}

.plan-row.tachado {
    justify-content: center;
    gap: 6px;
    font-size: 12px;
    color: var(--text-3);
}

.plan-row.tachado span:last-child {
    text-decoration: line-through;
    color: var(--text-3);
}

.plan-header-label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .1em;
    color: var(--text-3);
    margin-bottom: 8px;
}

.plan-badge-promo {
    display: inline-block;
    background: linear-gradient(135deg, #e91e8c, #c2185b);
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    padding: 5px 16px;
    border-radius: 20px;
    margin: 10px 0 6px;
    letter-spacing: .03em;
    box-shadow: 0 4px 14px rgba(233, 30, 140, 0.4);
}

.plan-con-label {
    font-size: 12px;
    color: var(--text-3);
    margin-bottom: 4px;
}

.plan-precio-actual {
    font-size: 30px;
    font-weight: 900;
    color: var(--text-1);
    line-height: 1.1;
    margin-bottom: 4px;
}

.plan-precio-actual .plan-xmes {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-2);
}

.plan-sin-movi {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border2);
    border-radius: 8px;
    padding: 10px 12px;
    font-size: 12px;
    color: var(--text-2);
    margin-top: 12px;
    text-align: left;
    line-height: 1.4;
}

.plan-wifi {
    font-size: 12px;
    color: var(--accent);
    font-weight: 600;
    margin-top: 10px;
    padding: 6px 0;
    border-top: 1px solid var(--border2);
}

.section-form {
    max-width: 820px;
    margin: 60px auto;
    padding: 0 20px;
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.25);
    border-radius: 30px;
    padding: 5px 16px;
    font-size: 11px;
    font-weight: 700;
    color: #a5b4fc;
    text-transform: uppercase;
    letter-spacing: .08em;
    margin-bottom: 14px;
}

.section-title {
    font-size: clamp(24px, 4vw, 36px);
    font-weight: 800;
    margin-bottom: 6px;
    line-height: 1.2;
}

.section-title span {
    color: var(--primary);
}

.section-sub {
    color: var(--text-2);
    font-size: 15px;
    margin-bottom: 36px;
}

.form-card {
    background: var(--surface);
    border: 1px solid var(--border2);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.form-section-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .1em;
    color: var(--text-3);
    margin: 28px 0 16px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border2);
}

.form-section-title:first-child {
    margin-top: 0;
}

.form-section-title .icon {
    font-size: 16px;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
}

.form-grid.cols-3 {
    grid-template-columns: 1fr 1fr 1fr;
}

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

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

.field.full {
    grid-column: 1 / -1;
}

label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-2);
    text-transform: uppercase;
    letter-spacing: .06em;
}

label .req {
    color: var(--primary);
    margin-left: 2px;
}

input[type=text],
input[type=email],
input[type=tel],
input[type=date],
input[type=number],
select,
textarea {
    width: 100%;
    background: var(--dark2);
    border: 1.5px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-sm);
    padding: 13px 16px;
    color: var(--text-1);
    font-size: 15px;
    font-family: 'Inter', sans-serif;
    outline: none;
    transition: border-color .2s, box-shadow .2s, background .2s;
    -webkit-appearance: none;
    appearance: none;
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.15);
    background: rgba(14, 165, 233, 0.04);
}

input:disabled,
select:disabled {
    opacity: .5;
    cursor: not-allowed;
    background: rgba(255, 255, 255, 0.03);
}

select option {
    background: var(--dark2);
}

input.is-valid {
    border-color: var(--accent);
}

input.is-invalid {
    border-color: var(--danger);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.12);
}

.field-hint {
    font-size: 11px;
    color: var(--text-3);
    margin-top: -4px;
}

.field-error {
    font-size: 11px;
    color: #fca5a5;
    margin-top: -4px;
    display: none;
}

.field-error.show {
    display: block;
}

.plan-selector {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-top: 4px;
}

.plan-option {
    position: relative;
}

.plan-option input[type=radio] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.plan-option label {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 16px 12px;
    background: var(--dark2);
    border: 1.5px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-sm);
    cursor: pointer;
    text-transform: none;
    letter-spacing: 0;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-2);
    transition: all .2s;
}

.plan-option label:hover {
    border-color: var(--primary);
    color: var(--text-1);
}

.plan-option input:checked+label {
    border-color: var(--primary);
    background: rgba(14, 165, 233, 0.1);
    color: var(--text-1);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.15);
}

.plan-option .plan-mb {
    font-size: 24px;
    font-weight: 900;
    line-height: 1;
}

.plan-option[data-plan="300"] .plan-mb {
    color: #a78bfa;
}

.plan-option[data-plan="600"] .plan-mb {
    color: var(--primary);
}

.plan-option[data-plan="1000"] .plan-mb {
    color: var(--accent);
}

.tarjeta-section {
    margin-top: 8px;
    border: 1px solid rgba(245, 158, 11, 0.2);
    border-radius: var(--radius);
    padding: 24px;
    background: rgba(245, 158, 11, 0.03);
    position: relative;
    overflow: hidden;
}

.tarjeta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(to bottom, var(--warning), #f97316);
}

.tarjeta-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.tarjeta-header .icon {
    font-size: 24px;
}

.tarjeta-header h3 {
    font-size: 16px;
    font-weight: 700;
}

.tarjeta-header .opt-badge {
    background: rgba(16, 185, 129, 0.12);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: #6ee7b7;
    padding: 2px 10px;
    border-radius: 20px;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .06em;
}

.card-warning-banner {
    background: linear-gradient(135deg, #7f1d1d, #991b1b);
    border: 2px solid var(--danger);
    border-radius: var(--radius-sm);
    padding: 16px 20px;
    margin-bottom: 20px;
    display: flex;
    gap: 14px;
    align-items: flex-start;
    box-shadow: 0 4px 20px rgba(239, 68, 68, 0.25), inset 0 0 30px rgba(239, 68, 68, 0.08);
    animation: pulseWarning 2s ease-in-out infinite;
}

@keyframes pulseWarning {

    0%,
    100% {
        box-shadow: 0 4px 20px rgba(239, 68, 68, 0.25), inset 0 0 30px rgba(239, 68, 68, 0.08);
    }

    50% {
        box-shadow: 0 4px 30px rgba(239, 68, 68, 0.5), inset 0 0 30px rgba(239, 68, 68, 0.15);
    }
}

.warning-icon {
    font-size: 28px;
    flex-shrink: 0;
    line-height: 1;
}

.warning-text {
    flex: 1;
}

.warning-text strong {
    display: block;
    font-size: 14px;
    font-weight: 800;
    color: #fca5a5;
    line-height: 1.4;
    text-transform: uppercase;
    letter-spacing: .04em;
    margin-bottom: 4px;
}

.warning-text p {
    font-size: 12px;
    color: #fca5a5;
    opacity: .75;
}

.card-input-wrapper {
    position: relative;
}

.card-input-wrapper input {
    font-family: 'Courier New', monospace;
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 4px;
    text-align: center;
    padding: 18px 60px;
}

.card-chip {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 24px;
    pointer-events: none;
}

.luhn-status {
    font-size: 12px;
    font-weight: 600;
    margin-top: 8px;
    padding: 6px 12px;
    border-radius: 6px;
    display: none;
}

.luhn-status.valid {
    display: block;
    background: rgba(16, 185, 129, 0.12);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: #6ee7b7;
}

.luhn-status.invalid {
    display: block;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #fca5a5;
}

.form-submit-area {
    margin-top: 32px;
    border-top: 1px solid var(--border2);
    padding-top: 28px;
}

.privacy-note {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    margin-bottom: 20px;
    font-size: 12px;
    color: var(--text-3);
}

.privacy-note .icon {
    font-size: 16px;
    flex-shrink: 0;
    margin-top: 1px;
}

.btn-submit {
    width: 100%;
    padding: 18px;
    background: linear-gradient(135deg, var(--primary), var(--primary-d));
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 17px;
    font-weight: 700;
    cursor: pointer;
    transition: all .2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    letter-spacing: .02em;
    position: relative;
    overflow: hidden;
}

.btn-submit::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left .5s;
}

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

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(14, 165, 233, 0.4);
}

.btn-submit:active {
    transform: translateY(0);
}

.btn-submit:disabled {
    opacity: .6;
    cursor: not-allowed;
    transform: none;
}

.btn-submit .spinner {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin .7s linear infinite;
    display: none;
}

.btn-submit.loading .btn-text {
    display: none;
}

.btn-submit.loading .spinner {
    display: block;
}

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

.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
}

.toast {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 16px 20px;
    min-width: 300px;
    font-size: 14px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
    animation: slideInRight .3s ease;
    pointer-events: all;
}

.toast.success {
    border-color: rgba(16, 185, 129, 0.4);
    color: #6ee7b7;
}

.toast.error {
    border-color: rgba(239, 68, 68, 0.4);
    color: #fca5a5;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

footer {
    background: var(--dark2);
    border-top: 1px solid var(--border);
    text-align: center;
    padding: 30px 20px;
    color: var(--text-3);
    font-size: 13px;
    margin-top: 80px;
}

@media (max-width: 640px) {
    .form-card {
        padding: 24px 18px;
    }

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

    .form-grid.cols-3 {
        grid-template-columns: 1fr;
    }

    .plan-selector {
        grid-template-columns: 1fr;
    }

    .planes-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .form-grid.cols-3 {
        grid-template-columns: 1fr 1fr;
    }

    .hero {
        padding: 40px 16px 30px;
    }
}