/* Certificate Depot - Color Palette */
:root {
    --sky-blue: #8ecae6;
    --blue-green: #219ebc;
    --deep-space: #023047;
    --amber-flame: #ffb703;
    --tiger-orange: #fb8500;
}

/* Header */
.cd-header {
    background: linear-gradient(135deg, var(--deep-space) 0%, #04506e 100%);
}
.cd-header h1 {
    color: #ffffff;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}
.cd-header p {
    color: var(--sky-blue);
}

/* Card */
.cd-card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-top: 4px solid var(--blue-green);
    border-radius: 1rem;
    box-shadow: 0 4px 24px rgba(2, 48, 71, 0.08);
}

/* Icon circle */
.cd-icon {
    background: linear-gradient(135deg, var(--sky-blue) 0%, var(--blue-green) 100%);
    color: #ffffff;
}

/* Headings */
.cd-heading { color: var(--deep-space); }

/* Labels */
.cd-label { color: var(--deep-space); }

/* Inputs */
.cd-input {
    border: 2px solid #e2e8f0;
    border-radius: 0.75rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.cd-input:focus {
    border-color: var(--blue-green);
    box-shadow: 0 0 0 3px rgba(33, 158, 188, 0.15);
    outline: none;
}

/* Primary button (Next, Generate) */
.cd-btn-primary {
    background: linear-gradient(135deg, var(--amber-flame) 0%, var(--tiger-orange) 100%);
    color: var(--deep-space);
    font-weight: 700;
    border: none;
    border-radius: 0.75rem;
    box-shadow: 0 2px 8px rgba(251, 133, 0, 0.3);
    transition: transform 0.15s, box-shadow 0.15s;
}
.cd-btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(251, 133, 0, 0.4);
}
.cd-btn-primary:active {
    transform: translateY(0);
}
.cd-btn-primary:disabled {
    opacity: 0.7;
    transform: none;
    box-shadow: none;
}

/* Back link */
.cd-back {
    color: var(--blue-green);
    font-weight: 600;
    transition: color 0.15s;
}
.cd-back:hover {
    color: var(--deep-space);
}

/* CN display bar */
.cd-cn-bar {
    border-bottom: 2px solid var(--sky-blue);
    padding-bottom: 1.25rem;
    margin-bottom: 1.5rem;
}
.cd-cn-label {
    color: var(--blue-green);
    text-transform: uppercase;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.1em;
}
.cd-cn-value {
    color: var(--deep-space);
}

/* Format toggle */
.cd-format-option {
    border: 2px solid #e2e8f0;
    border-radius: 0.75rem;
    color: #64748b;
    font-weight: 600;
    transition: all 0.2s;
}
.cd-format-option.active {
    border-color: var(--blue-green);
    background: rgba(142, 202, 230, 0.15);
    color: var(--deep-space);
}

/* Counter */
.cd-counter {
    color: var(--blue-green);
    font-weight: 500;
}

/* Footer */
.cd-footer {
    background: var(--deep-space);
}
.cd-footer-warning {
    color: var(--amber-flame);
}
.cd-footer-sub {
    color: var(--sky-blue);
    opacity: 0.6;
}

/* Uppercase country input */
#country { text-transform: uppercase; }

/* Smooth transitions between steps */
#step1, #step2 { transition: opacity 0.15s ease; }