/* BOTONES */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 32px;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    border: none;
    cursor: none;
    position: relative;
    color: var(--color-text-main);
    background-color: transparent;
    border-radius: 100px; /* Pill shape for premium feel */
    transition: var(--transition-smooth);
    z-index: 1;
}

.btn-primary {
    background: var(--gradient-primary);
    box-shadow: 0 4px 15px var(--color-primary-glow);
    color: var(--color-text-main);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: var(--gradient-hover);
    border-radius: 100px;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 59, 48, 0.6);
}

.btn-primary:hover::before {
    opacity: 1;
}

.btn-primary:active {
    transform: translateY(1px);
}

/* PROJECT MODAL (POPUP PREMIUM GLASSMORPHISM) */
.project-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    padding: var(--padding-global);
}

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

.project-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(5, 5, 5, 0.6);
    backdrop-filter: blur(20px) saturate(150%);
    -webkit-backdrop-filter: blur(20px) saturate(150%);
    cursor: none;
}

.project-modal-content {
    position: relative;
    width: 100%;
    max-width: 650px;
    background: rgba(20, 20, 20, 0.6);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border: 1px solid rgba(255,255,255,0.08);
    box-shadow: 0 30px 60px rgba(0,0,0,0.5), inset 0 1px 0 rgba(255,255,255,0.1);
    border-radius: 24px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    z-index: 1;
    transform: translateY(40px) scale(0.95);
    opacity: 0;
    transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1) 0.1s;
    max-height: 90vh;
}

.project-modal.active .project-modal-content {
    transform: translateY(0) scale(1);
    opacity: 1;
}

.project-modal-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    width: 44px;
    height: 44px;
    background: rgba(255,255,255,0.05);
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.1);
    z-index: 10;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: var(--transition-fast);
    cursor: none;
    backdrop-filter: blur(5px);
}

.project-modal-close:hover {
    background: rgba(255,255,255,0.15);
    transform: rotate(90deg);
}

.project-modal-close span {
    position: absolute;
    width: 20px;
    height: 2px;
    background-color: var(--color-text-main);
    border-radius: 2px;
}

.project-modal-close span:nth-child(1) { transform: rotate(45deg); }
.project-modal-close span:nth-child(2) { transform: rotate(-45deg); }

.project-modal-info {
    padding: 4rem 3.5rem;
    overflow-y: auto;
    text-align: center;
}

.project-modal-info .modal-title {
    font-size: clamp(2.2rem, 4vw, 3.5rem);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1.5rem;
}

.project-modal-info .modal-desc {
    font-size: 1.15rem;
    color: var(--color-text-sec);
    line-height: 1.7;
}

@media (max-width: 768px) {
    .project-modal-content {
        max-height: 95vh;
        border-radius: 20px;
    }
    .project-modal-info {
        padding: 2.5rem 1.5rem;
    }
}