/* ========== Base & Reset ========== */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    overflow-x: hidden;
}

::selection {
    background: #8b1a1a;
    color: #fff;
}

/* ========== Typography ========== */
h1, h2, h3, h4 {
    font-weight: 300;
}

/* ========== Navigation ========== */
#navbar {
    backdrop-filter: blur(0px);
    transition: background-color 0.5s ease, backdrop-filter 0.5s ease, box-shadow 0.5s ease;
}

#navbar.scrolled {
    background-color: rgba(250, 250, 248, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.05);
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: #8b1a1a;
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

/* Mobile Menu */
#mobile-menu.open {
    transform: translateX(0);
}

.menu-line {
    transition: all 0.3s ease;
}

#menu-toggle.active .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(3px, 3px);
}

#menu-toggle.active .menu-line:nth-child(2) {
    opacity: 0;
}

#menu-toggle.active .menu-line:nth-child(3) {
    width: 24px;
    transform: rotate(-45deg) translate(3px, -3px);
}

/* ========== Hero ========== */
.hero-eyebrow {
    animation: fadeUp 0.8s ease forwards;
    opacity: 0;
}

.hero-title {
    animation: fadeUp 0.8s ease 0.15s forwards;
    opacity: 0;
}

.hero-subtitle {
    animation: fadeUp 0.8s ease 0.3s forwards;
    opacity: 0;
}

.hero-cta-primary {
    animation: fadeUp 0.8s ease 0.45s forwards;
    opacity: 0;
}

.hero-cta-secondary {
    animation: fadeUp 0.8s ease 0.55s forwards;
    opacity: 0;
}

.hero-stat {
    animation: fadeUp 0.8s ease 0.7s forwards;
    opacity: 0;
}

.hero-image {
    transition: transform 0.6s ease;
}

.hero-image-wrapper:hover .hero-image {
    transform: scale(1.02);
}

.hero-float-card {
    animation: float 3s ease-in-out infinite;
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-8px);
    }
}

.scroll-line {
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% {
        opacity: 0.4;
        transform: scaleY(1);
    }
    50% {
        opacity: 1;
        transform: scaleY(1.2);
    }
}

/* ========== Section Shared ========== */
.section-eyebrow {
    animation: fadeIn 0.6s ease forwards;
}

.section-title {
    animation: fadeIn 0.6s ease 0.1s forwards;
    opacity: 0;
}

.section-line {
    animation: expandLine 0.6s ease 0.2s forwards;
    transform: scaleX(0);
    transform-origin: left;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes expandLine {
    from { transform: scaleX(0); }
    to { transform: scaleX(1); }
}

/* ========== Service Cards ========== */
.service-card {
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 0;
    background: #8b1a1a;
    transition: height 0.5s ease;
}

.service-card:hover::before {
    height: 100%;
}

.service-link {
    position: relative;
}

.service-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: #8b1a1a;
    transition: width 0.3s ease;
}

.service-link:hover::after {
    width: 100%;
}

/* ========== About ========== */
.about-image {
    transition: transform 0.6s ease;
}

.about-image-wrapper:hover .about-image {
    transform: scale(1.02);
}

.about-badge {
    animation: float 4s ease-in-out infinite;
}

.about-value {
    transition: transform 0.3s ease;
}

.about-value:hover {
    transform: translateX(4px);
}

/* ========== Approach ========== */
.approach-step {
    transition: transform 0.3s ease;
}

.approach-step:hover {
    transform: translateY(-4px);
}

/* ========== Contact ========== */
.contact-item {
    transition: transform 0.3s ease;
}

.contact-item:hover {
    transform: translateX(4px);
}

/* ========== Form ========== */
.form-input {
    transition: all 0.3s ease;
}

.form-input:focus {
    border-color: #c76464;
    box-shadow: 0 0 0 3px rgba(139, 26, 26, 0.1);
}

.form-submit {
    position: relative;
    overflow: hidden;
}

.form-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 0.5s ease;
}

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

/* ========== Scroll Animations ========== */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ========== Responsive ========== */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.25rem;
    }
    
    .hero-image {
        height: 350px !important;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .service-card {
        padding: 2rem 1.5rem !important;
    }
    
    .about-image {
        height: 300px !important;
    }
    
    .approach-number {
        font-size: 4rem !important;
    }
}