/* ==========================================================================
   ROMAN WALDMEIER — LANDING PAGE DESIGN SYSTEM
   Theme: Architectural Monochrome + Obsidian Glass & Ambient Interactivity
   ========================================================================== */

/* Root Design Variables */
:root {
    --bg-color: #08090c;
    --card-bg: rgba(13, 16, 25, 0.72);
    --card-border: rgba(255, 255, 255, 0.08);
    --card-border-glow: rgba(99, 102, 241, 0.3);
    
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --text-dim: #64748b;
    
    --accent-glow: rgba(56, 189, 248, 0.15);
    --btn-bg: #0f121d;
    --btn-border: rgba(255, 255, 255, 0.15);
    --btn-hover-border: rgba(255, 255, 255, 0.35);
    --btn-text: #ffffff;
    
    --font-heading: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    
    --transition-smooth: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-body);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Canvas Background */
#bg-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

/* Ambient Cursor Light */
.ambient-light {
    position: fixed;
    top: 0;
    left: 0;
    width: 600px;
    height: 600px;
    margin-top: -300px;
    margin-left: -300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.08) 0%, rgba(56, 189, 248, 0.04) 40%, rgba(0, 0, 0, 0) 70%);
    pointer-events: none;
    z-index: 2;
    transform: translate(-1000px, -1000px);
    transition: transform 0.15s cubic-bezier(0.1, 1, 0.1, 1);
}

/* Hero Container */
.hero-container {
    position: relative;
    z-index: 10;
    width: 100%;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 2rem;
}

.hero-content {
    text-align: center;
    max-width: 900px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3rem;
}

/* Brand Name Headline */
.brand-name {
    font-family: var(--font-heading);
    font-size: clamp(2.4rem, 6.5vw, 5.2rem);
    font-weight: 700;
    letter-spacing: 0.22em;
    color: var(--text-main);
    text-transform: uppercase;
    text-indent: 0.22em; /* Offsets letter-spacing alignment */
    line-height: 1.1;
    user-select: none;
    background: linear-gradient(180deg, #FFFFFF 0%, #A1A1AA 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 4px 24px rgba(255, 255, 255, 0.1));
    animation: fadeInName 1.2s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes fadeInName {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.98);
        filter: blur(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
        filter: blur(0);
    }
}

/* Primary CTA Button ("GET IN TOUCH") */
.cta-wrapper {
    animation: fadeInCTA 1.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes fadeInCTA {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.get-in-touch-btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 0.85rem;
    padding: 1.1rem 2.8rem;
    background: var(--btn-bg);
    border: 1px solid var(--btn-border);
    border-radius: 9999px;
    color: var(--btn-text);
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 0.18em;
    cursor: pointer;
    overflow: hidden;
    transition: var(--transition-smooth);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

.get-in-touch-btn .btn-text {
    position: relative;
    z-index: 2;
}

.get-in-touch-btn .btn-arrow {
    position: relative;
    z-index: 2;
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.get-in-touch-btn .btn-glow {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.12), transparent);
    transition: left 0.6s ease;
}

.get-in-touch-btn:hover {
    border-color: var(--btn-hover-border);
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.6), 0 0 30px rgba(255, 255, 255, 0.08);
}

.get-in-touch-btn:hover .btn-arrow {
    transform: translateX(4px);
}

.get-in-touch-btn:hover .btn-glow {
    left: 100%;
}

.get-in-touch-btn:active {
    transform: translateY(0) scale(0.99);
}

/* Footer Section */
.minimal-footer {
    position: fixed;
    bottom: 2rem;
    left: 0;
    width: 100%;
    z-index: 10;
    padding: 0 2.5rem;
    pointer-events: none;
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-tag {
    font-size: 0.8rem;
    letter-spacing: 0.12em;
    color: var(--text-dim);
    text-transform: uppercase;
    font-weight: 500;
}

.social-links {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    pointer-events: auto;
}

.icon-link {
    position: relative;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 50%;
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition-fast);
    text-decoration: none;
}

.icon-link:hover {
    color: var(--text-main);
    border-color: rgba(255, 255, 255, 0.25);
    background: rgba(255, 255, 255, 0.05);
    transform: translateY(-2px);
}

/* Tooltip for Copy Email */
.tooltip {
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) translateY(4px);
    padding: 0.35rem 0.75rem;
    background: rgba(15, 18, 29, 0.95);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 6px;
    color: var(--text-main);
    font-size: 0.72rem;
    font-weight: 500;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-fast);
    pointer-events: none;
}

.icon-link:hover .tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

/* ==========================================================================
   MODAL OVERLAY & CONTACT FORM
   ========================================================================== */

.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(4, 5, 8, 0.75);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.35s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.35s;
}

.modal-backdrop.active {
    opacity: 1;
    visibility: visible;
}

.modal-card {
    position: relative;
    width: 100%;
    max-width: 520px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(28px) saturate(180%);
    -webkit-backdrop-filter: blur(28px) saturate(180%);
    border-radius: 24px;
    padding: 2.8rem 2.5rem;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.7), inset 0 1px 0 rgba(255, 255, 255, 0.12);
    transform: scale(0.94) translateY(15px);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    max-height: 90vh;
    overflow-y: auto;
}

.modal-backdrop.active .modal-card {
    transform: scale(1) translateY(0);
}

/* Modal Close Button */
.close-btn {
    position: absolute;
    top: 1.6rem;
    right: 1.6rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition-fast);
}

.close-btn:hover {
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.12);
    transform: rotate(90deg);
}

/* Modal Header */
.modal-header {
    margin-bottom: 2rem;
}

.modal-header h2 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-main);
    letter-spacing: 0.02em;
    margin-bottom: 0.5rem;
}

.modal-subtitle {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* Form Controls */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.4rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group textarea {
    width: 100%;
    padding: 0.9rem 1.1rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    color: var(--text-main);
    font-family: var(--font-body);
    font-size: 0.95rem;
    outline: none;
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: rgba(255, 255, 255, 0.35);
    background: rgba(255, 255, 255, 0.06);
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.05);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

/* Tag Chips */
.tags-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.2rem;
}

.tag-chip {
    padding: 0.45rem 0.9rem;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 999px;
    color: var(--text-muted);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-fast);
}

.tag-chip:hover {
    color: var(--text-main);
    border-color: rgba(255, 255, 255, 0.25);
    background: rgba(255, 255, 255, 0.08);
}

.tag-chip.active {
    background: var(--text-main);
    color: #08090c;
    border-color: var(--text-main);
    font-weight: 600;
}

/* Submit Button */
.submit-btn {
    position: relative;
    width: 100%;
    margin-top: 0.6rem;
    padding: 1.05rem;
    background: var(--text-main);
    border: none;
    border-radius: 12px;
    color: #08090c;
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    cursor: pointer;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    justify-content: center;
}

.submit-btn:hover {
    background: #ffffff;
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.2);
    transform: translateY(-1px);
}

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

/* Form Success View */
.form-success {
    text-align: center;
    padding: 2rem 1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.2rem;
}

.form-success.hidden {
    display: none;
}

.contact-form.hidden {
    display: none;
}

.success-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: rgba(34, 197, 94, 0.15);
    border: 1px solid rgba(34, 197, 94, 0.4);
    color: #4ade80;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: popIn 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes popIn {
    from {
        transform: scale(0.5);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.form-success h3 {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-main);
}

.form-success p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.5;
    max-width: 360px;
}

.reset-btn {
    margin-top: 0.5rem;
    padding: 0.8rem 2rem;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 999px;
    color: var(--text-main);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
}

.reset-btn:hover {
    background: rgba(255, 255, 255, 0.18);
}

/* Mobile Responsive Adjustments */
@media (max-width: 640px) {
    .brand-name {
        letter-spacing: 0.15em;
        text-indent: 0.15em;
    }

    .minimal-footer {
        padding: 0 1.5rem;
        bottom: 1.5rem;
    }

    .footer-inner {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .modal-card {
        padding: 2rem 1.6rem;
        border-radius: 20px;
    }
}