/* ========================================
   AureaFinance - Main Stylesheet
   Design System: Elegant Luxury
   ======================================== */

/* Design System Variables */
:root {
    /* Colors */
    --color-black: #0A0A0A;
    --color-white: #FFFFFF;
    --color-rose-gold: #B76E79;
    --color-gold: #D4AF37;
    --color-gray-dark: #2C2C2C;
    --color-gray: #8B8B8B;
    --color-gray-light: #F5F5F5;
    --color-ivory: #FFFFF0;

    /* Typography */
    --font-serif: 'Playfair Display', serif;
    --font-serif-alt: 'Cormorant Garamond', serif;
    --font-sans: 'Lato', sans-serif;
    --font-sans-alt: 'Montserrat', sans-serif;

    /* Spacing */
    --spacing-xs: 8px;
    --spacing-s: 16px;
    --spacing-m: 24px;
    --spacing-l: 48px;
    --spacing-xl: 80px;
    --spacing-xxl: 120px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.4s ease;
    --transition-slow: 0.6s ease;

    /* Borders */
    --border-thin: 1px solid var(--color-gray);
    --border-gold: 1px solid var(--color-gold);
    --border-rose: 1px solid var(--color-rose-gold);

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
    --shadow-gold: 0 4px 16px rgba(212, 175, 55, 0.2);
}

/* ========================================
   Base Styles
   ======================================== */

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

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-gray-dark);
    background: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ========================================
   Typography
   ======================================== */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif);
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-black);
    margin-bottom: var(--spacing-m);
}

h1 {
    font-size: clamp(42px, 6vw, 72px);
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(36px, 5vw, 56px);
    letter-spacing: -0.01em;
}

h3 {
    font-size: clamp(28px, 4vw, 42px);
}

h4 {
    font-size: clamp(22px, 3vw, 32px);
}

h5 {
    font-size: clamp(18px, 2.5vw, 24px);
}

h6 {
    font-size: clamp(16px, 2vw, 20px);
}

p {
    margin-bottom: var(--spacing-m);
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-medium);
}

a:hover {
    color: var(--color-gold);
}

/* ========================================
   Container System
   ======================================== */

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-l);
}

.container-medium {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-l);
}

.container-narrow {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 var(--spacing-l);
}

/* ========================================
   Section Spacing
   ======================================== */

section {
    padding: var(--spacing-xxl) 0;
}

section.section-small {
    padding: var(--spacing-xl) 0;
}

section.section-large {
    padding: calc(var(--spacing-xxl) * 1.5) 0;
}

/* Section Titles */
.section-title {
    font-family: var(--font-serif);
    font-size: clamp(36px, 5vw, 56px);
    text-align: center;
    margin-bottom: var(--spacing-s);
}

.section-subtitle {
    font-family: var(--font-sans);
    font-size: clamp(16px, 2vw, 20px);
    color: var(--color-gray);
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-ornament {
    width: 80px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-gold), transparent);
    margin: var(--spacing-m) auto;
}

/* ========================================
   Buttons
   ======================================== */

.btn-primary-large {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 18px 40px;
    background: linear-gradient(135deg, var(--color-rose-gold), var(--color-gold));
    color: var(--color-white);
    font-family: var(--font-sans-alt);
    font-size: 16px;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    border: none;
    border-radius: 0;
    cursor: pointer;
    transition: var(--transition-medium);
    box-shadow: var(--shadow-gold);
}

.btn-primary-large:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(212, 175, 55, 0.3);
    color: var(--color-white);
}

.btn-primary-small {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: linear-gradient(135deg, var(--color-rose-gold), var(--color-gold));
    color: var(--color-white);
    font-family: var(--font-sans-alt);
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    border: none;
    cursor: pointer;
    transition: var(--transition-medium);
}

.btn-primary-small:hover {
    transform: translateY(-2px);
    color: var(--color-white);
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    background: transparent;
    color: var(--color-black);
    border: var(--border-gold);
    font-family: var(--font-sans-alt);
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    cursor: pointer;
    transition: var(--transition-medium);
}

.btn-outline:hover {
    background: var(--color-gold);
    color: var(--color-white);
    border-color: var(--color-gold);
}

.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: transparent;
    border: var(--border-gold);
    color: var(--color-gold);
    cursor: pointer;
    transition: var(--transition-medium);
}

.btn-icon:hover {
    background: var(--color-gold);
    color: var(--color-white);
}

.btn-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-sans-alt);
    font-size: 14px;
    font-weight: 500;
    color: var(--color-gold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: var(--transition-fast);
}

.btn-link:hover {
    gap: 12px;
}

/* ========================================
   Form Styles
   ======================================== */

.luxury-form {
    background: var(--color-white);
    padding: var(--spacing-xl);
    border: var(--border-gold);
    box-shadow: var(--shadow-md);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-m);
    margin-bottom: var(--spacing-m);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-m);
}

.form-group {
    position: relative;
    margin-bottom: var(--spacing-m);
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-family: var(--font-sans-alt);
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-gray-dark);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 14px 16px;
    background: var(--color-white);
    border: var(--border-thin);
    font-family: var(--font-sans);
    font-size: 15px;
    color: var(--color-black);
    transition: var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-gold);
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L6 6L11 1' stroke='%23D4AF37' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.checkbox-group,
.radio-group {
    margin-bottom: var(--spacing-m);
}

.checkbox-label,
.filter-checkbox,
.filter-radio {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    cursor: pointer;
    margin-bottom: var(--spacing-s);
}

.checkbox-label input[type="checkbox"],
.filter-checkbox input[type="checkbox"],
.filter-radio input[type="radio"] {
    display: none;
}

.checkbox-custom,
.radio-custom {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    border: var(--border-gold);
    background: var(--color-white);
    transition: var(--transition-fast);
    position: relative;
    margin-top: 2px;
}

.radio-custom {
    border-radius: 50%;
}

.checkbox-label input[type="checkbox"]:checked + .checkbox-custom,
.filter-checkbox input[type="checkbox"]:checked + .checkbox-custom {
    background: var(--color-gold);
    border-color: var(--color-gold);
}

.checkbox-label input[type="checkbox"]:checked + .checkbox-custom::after,
.filter-checkbox input[type="checkbox"]:checked + .checkbox-custom::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 6px;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.filter-radio input[type="radio"]:checked + .radio-custom {
    border-color: var(--color-gold);
}

.filter-radio input[type="radio"]:checked + .radio-custom::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 10px;
    height: 10px;
    background: var(--color-gold);
    border-radius: 50%;
}

.checkbox-text,
.radio-text {
    font-size: 15px;
    color: var(--color-gray-dark);
}

.form-notice {
    font-size: 13px;
    color: var(--color-gray);
    margin-top: var(--spacing-m);
    font-style: italic;
}

.form-actions {
    display: flex;
    gap: var(--spacing-m);
    align-items: center;
    margin-top: var(--spacing-l);
}

/* ========================================
   Cards
   ======================================== */

.instrument-card {
    background: var(--color-white);
    border: var(--border-thin);
    padding: var(--spacing-l);
    transition: var(--transition-medium);
    position: relative;
    display: flex;
    flex-direction: column;
}

.instrument-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-rose-gold), var(--color-gold));
    transform: scaleX(0);
    transition: var(--transition-medium);
}

.instrument-card:hover {
    border-color: var(--color-gold);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.instrument-card:hover::before {
    transform: scaleX(1);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-m);
}

.card-category {
    font-family: var(--font-sans-alt);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-gold);
}

.card-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    background: var(--color-gray-light);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.card-badge.featured {
    background: linear-gradient(135deg, var(--color-rose-gold), var(--color-gold));
    color: var(--color-white);
}

.card-body {
    flex: 1;
}

.card-title {
    font-size: 24px;
    margin-bottom: var(--spacing-s);
}

.card-title a {
    color: var(--color-black);
    transition: var(--transition-fast);
}

.card-title a:hover {
    color: var(--color-gold);
}

.card-description {
    font-size: 15px;
    color: var(--color-gray);
    margin-bottom: var(--spacing-m);
    line-height: 1.6;
}

.card-metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-s);
    margin-bottom: var(--spacing-m);
    padding: var(--spacing-m) 0;
    border-top: var(--border-thin);
    border-bottom: var(--border-thin);
}

.metric {
    text-align: center;
}

.metric-label {
    display: block;
    font-size: 12px;
    color: var(--color-gray);
    margin-bottom: 4px;
}

.metric-value {
    display: block;
    font-family: var(--font-serif);
    font-size: 20px;
    font-weight: 600;
    color: var(--color-black);
}

.metric-value.positive {
    color: #4CAF50;
}

.metric-value.negative {
    color: #F44336;
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: var(--spacing-m);
}

.tag {
    padding: 4px 12px;
    background: var(--color-gray-light);
    font-size: 12px;
    color: var(--color-gray-dark);
    border: 1px solid var(--color-gray-light);
    transition: var(--transition-fast);
}

.tag:hover {
    border-color: var(--color-gold);
    color: var(--color-gold);
}

.card-footer {
    display: flex;
    gap: var(--spacing-s);
    align-items: center;
    margin-top: var(--spacing-m);
}

.card-footer .btn-outline {
    flex: 1;
}

/* ========================================
   Risk Indicator
   ======================================== */

.risk-indicator {
    display: flex;
    gap: 4px;
    align-items: center;
    justify-content: center;
}

.risk-bar {
    width: 8px;
    height: 20px;
    background: var(--color-gray-light);
    transition: var(--transition-fast);
}

.risk-bar.active {
    background: var(--color-rose-gold);
}

.risk-1 .risk-bar.active { background: #4CAF50; }
.risk-2 .risk-bar.active { background: #8BC34A; }
.risk-3 .risk-bar.active { background: #FFC107; }
.risk-4 .risk-bar.active { background: #FF9800; }
.risk-5 .risk-bar.active { background: #F44336; }

/* ========================================
   Decorative Elements
   ======================================== */

.divider-luxury {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-gold), transparent);
    margin: var(--spacing-xl) 0;
}

/* ========================================
   Responsive
   ======================================== */

@media (max-width: 1024px) {
    :root {
        --spacing-xl: 60px;
        --spacing-xxl: 80px;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-l: 24px;
        --spacing-xl: 48px;
        --spacing-xxl: 64px;
    }

    section {
        padding: var(--spacing-xl) 0;
    }

    .luxury-form {
        padding: var(--spacing-l);
    }

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

    .card-metrics {
        grid-template-columns: 1fr;
        gap: var(--spacing-m);
    }

    .metric {
        text-align: left;
    }

    .card-footer {
        flex-direction: column;
    }

    .card-footer .btn-outline {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .btn-primary-large {
        padding: 16px 28px;
        font-size: 14px;
    }

    .form-actions {
        flex-direction: column;
        width: 100%;
    }

    .form-actions .btn-primary-large {
        width: 100%;
    }
}